Schäfer, Maximilian

• Julian Parker, Sebastian Schlecht, Rudolf Rabenstein, Maximilian Schäfer: 3rd Best Paper Award (25th International Conference on Digital Audio Effects (DAFx20in22)) – 2022
• Maximilian Schäfer, Sebastian Lotter, Lukas Brand, Atakan Büyükoglu, Franz Enzenhofer, Werner Haselmayr, Kathrin Castiglione, Dietmar Appelhans, Robert Schober: Best Paper Award (9th ACM International Conference on Nanoscale Computing and Communications (NanoCom22)) – 2022
• Maximilian Schäfer: Lehrevaluation - Bestenliste – 2020

2024

• Brand L., Scherer M., tom Dieck T., Lotter S., Schäfer M., Burkovski A., Sticht H., Castiglione K., Schober R.:
  Closed Loop Molecular Communication Testbed: Setup, Interference Analysis, and Experimental Results
  ICC 2024 - IEEE International Conference on Communications (Denver, CO, 9. Juni 2024 - 13. Juni 2024)
  In: ICC 2024 - IEEE International Conference on Communications 2024
  DOI: 10.1109/ICC51166.2024.10622231
  BibTeX: Download
• Ettner-Sitter A., Montagner A., Kuenzel J., Brackmann K., Schäfer M., Schober R., Weber F., Aung T., Hackl C., Härteis S.:
  Visualization of Vascular Perfusion of Human Pancreatic Cancer Tissue in the CAM Model and Its Impact on Future Personalized Drug Testing
  In: Organoids 3 (2024), S. 1-17
  ISSN: 2674-1172
  DOI: 10.3390/organoids3010001
  BibTeX: Download
• Heinlein B., Brand L., Egan M., Schäfer M., Schober R., Lotter S.:
  Closing the Implementation Gap in MC: Fully Chemical Synchronization and Detection for Cellular Receivers
  In: IEEE Transactions on Molecular, Biological and Multi-Scale Communications (2024), S. 1-1
  ISSN: 2372-2061
  DOI: 10.1109/TMBMC.2024.3486190
  BibTeX: Download
• Schäfer M., Ettner-Sitter A., Brand L., Lotter S., Vakilipoor Takaloo F., Aung T., Härteis S., Schober R.:
  The Chorioallantoic Membrane Model: A 3D in vivo Testbed for Design and Analysis of MC Systems
  NANOCOM '24
  In: NANOCOM '24: Proceedings of the 11th Annual ACM International Conference on Nanoscale Computing and Communication 2024
  DOI: 10.1145/3686015.3689361
  BibTeX: Download
• tom Dieck T., Brand L., Lotter S., Castiglione K., Schober R., Schäfer M.:
  Nanoscale Transmitters Employing Cooperative Transmembrane Transport Proteins for Molecular Communication
  NANOCOM '24
  In: NANOCOM '24: Proceedings of the 11th Annual ACM International Conference on Nanoscale Computing and Communication 2024
  DOI: 10.1145/3686015.3689354
  BibTeX: Download

2023

• Arjmandi H., Awan H., Tran H., Schäfer M., Haselmayr W., Noel A.:
  Guest Editorial Introduction to the Special Feature on the 6th Workshop on Molecular Communications
  In: IEEE Transactions on Molecular, Biological and Multi-Scale Communications 9 (2023), S. 4-7
  ISSN: 2372-2061
  DOI: 10.1109/TMBMC.2023.3244020
  BibTeX: Download
• Brand L., Lotter S., Jamali V., Schober R., Schäfer M.:
  Area Rate Efficiency in Multi-Link Molecular Communications
  In: IEEE Transactions on Molecular, Biological and Multi-Scale Communications (2023), S. 1-1
  ISSN: 2372-2061
  DOI: 10.1109/TMBMC.2023.3321193
  BibTeX: Download
• Brand L., Scherer M., Lotter S., tom Dieck T., Schäfer M., Burkovski A., Sticht H., Castiglione K., Schober R.:
  Switchable Signaling Molecules for Media Modulation: Fundamentals, Applications, and Research Directions
  In: IEEE Communications Magazine (2023), S. 1-7
  ISSN: 0163-6804
  DOI: 10.1109/MCOM.021.2300096
  BibTeX: Download
• Egan M., Kuscu M., Barros MT., Booth M., Llopis-Lorente A., Magarini M., Martins D., Schäfer M., Stano P.:
  Toward Interdisciplinary Synergies in Molecular Communications: Perspectives from Synthetic Biology, Nanotechnology, Communications Engineering and Philosophy of Science
  In: Life 13 (2023), S. 208
  ISSN: 2075-1729
  DOI: 10.3390/life13010208
  BibTeX: Download
• Heinlein B., Brand L., Egan M., Schäfer M., Schober R., Lotter S.:
  Stochastic Chemical Reaction Networks for MAP Detection in Cellular Receivers
  NANOCOM '23
  In: NANOCOM '23: Proceedings of the 10th ACM International Conference on Nanoscale Computing and Communication 2023
  DOI: 10.1145/3576781.3608709
  BibTeX: Download
• Heinlein B., Brand L., Egan M., Schäfer M., Schober R., Lotter S.:
  Stochastic Chemical Reaction Networks for MAP Detection in Cellular Receivers
  10th ACM International Conference on Nanoscale Computing and Communication, NANOCOM 2023 (Coventry, 20. September 2023 - 22. September 2023)
  In: NanoCom 2023 - Proceedings of the 10th ACM International Conference on Nanoscale Computing and Communication 2023
  DOI: 10.1145/3576781.3608709
  BibTeX: Download
• Lotter S., Bellmann T., Marx S., Wesinger M., Brand L., Schäfer M., Fischer D., Schober R.:
  Microparticle-Based Controlled Drug Delivery Systems: From Experiments to Statistical Analysis and Design
  2023 IEEE Global Communications Conference, GLOBECOM 2023 (Kuala Lumpur, 4. Dezember 2023 - 8. Dezember 2023)
  In: Proceedings - IEEE Global Communications Conference, GLOBECOM 2023
  DOI: 10.1109/GLOBECOM54140.2023.10437710
  BibTeX: Download
• Lotter S., Brand L., Jamali V., Schäfer M., Loos H., Unterweger H., Greiner S., Kirchner J., Alexiou C., Drummer D., Fischer G., Büttner A., Schober R.:
  Experimental Research in Synthetic Molecular Communications - Part I
  In: IEEE Nanotechnology Magazine (2023), S. 1-12
  ISSN: 1942-7808
  DOI: 10.1109/MNANO.2023.3262100
  BibTeX: Download
• Lotter S., Brand L., Jamali V., Schäfer M., Loos HM., Unterweger H., Greiner S., Kirchner J., Alexiou C., Drummer D., Fischer G., Buettner A., Schober R.:
  Experimental Research in Synthetic Molecular Communications - Part II
  In: IEEE Nanotechnology Magazine (2023), S. 1-12
  ISSN: 1942-7808
  DOI: 10.1109/MNANO.2023.3262377
  BibTeX: Download
• Rabenstein R., Schäfer M.:
  Multidimensional Signals and Systems
  Cham: Springer, 2023
  ISBN: 9783031265136
  DOI: 10.1007/978-3-031-26514-3
  BibTeX: Download
• Schäfer M., Prawda K., Rabenstein R., Schlecht SJ.:
  Distribution of Modal Damping in Absorptive Shoebox Rooms
  2023 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2023 (New Paltz, NY, USA, 22. Oktober 2023 - 25. Oktober 2023)
  In: IEEE Workshop on Applications of Signal Processing to Audio and Acoustics 2023
  DOI: 10.1109/WASPAA58266.2023.10248145
  BibTeX: Download

2022

• Brand L., Garkisch M., Lotter S., Schäfer M., Burkovski A., Sticht H., Castiglione K., Schober R.:
  Media Modulation based Molecular Communication
  In: IEEE Transactions on Communications (2022), S. 1-1
  ISSN: 0090-6778
  DOI: 10.1109/TCOMM.2022.3205949
  BibTeX: Download
• Brand L., Garkisch M., Lotter S., Schäfer M., Castiglione K., Schober R.:
  Media Modulation in Molecular Communications
  2022 IEEE International Conference on Communications, ICC 2022 (Seoul, 16. Mai 2022 - 20. Mai 2022)
  In: IEEE International Conference on Communications 2022
  DOI: 10.1109/ICC45855.2022.9838662
  BibTeX: Download
• Lotter S., Barros MT., Schober R., Schäfer M.:
  Signal Reception With Generic Three-State Receptors in Synaptic MC
  GLOBECOM 2022 - 2022 IEEE Global Communications Conference (Rio de Janeiro, 4. Dezember 2022 - 8. Dezember 2023)
  In: IEEE Global Communications Conference 2022
  DOI: 10.1109/GLOBECOM48099.2022.10001154
  BibTeX: Download
• Lotter S., Schäfer M., Schober R.:
  A Chemical Master Equation Model for Synaptic Molecular Communication
  IEEE Wireless Communications and Networking Conference (IEEE WCNC) (Austin, TX)
  In: 2022 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC), NEW YORK: 2022
  DOI: 10.1109/WCNC51071.2022.9771866
  BibTeX: Download
• Lotter S., Schäfer M., Schober R.:
  Molecular Noise In Synaptic Communication
  In: IEEE Transactions on Nanobioscience (2022), S. 1-1
  ISSN: 1536-1241
  DOI: 10.1109/TNB.2022.3183692
  BibTeX: Download
• Parker J., Schlecht SJ., Rabenstein R., Schäfer M.:
  Physical Modeling using Recurrent Neural Networks with Fast Convolutional Layers
  25th International Conference on Digital Audio Effects (DaFX22) (Wien, 5. September 2022 - 10. September 2022)
  Open Access: https://dafx2020.mdw.ac.at/proceedings/papers/DAFx20in22_paper_38.pdf
  URL: https://dafx2020.mdw.ac.at/proceedings/papers/DAFx20in22_paper_38.pdf
  BibTeX: Download
• Schäfer M., Brand L., Lotter S., Büyükoglu A., Enzenhofer F., Haselmayr W., Castiglione K., Appelhans D., Schober R.:
  Controlled Signaling and Transmitter Replenishment for MC with Functionalized Nanoparticles
  9th ACM International Conference on Nanoscale Computing and Communication (Barcelona, 4. Oktober 2022 - 7. Oktober 2022)
  DOI: 10.1145/3558583.3558853
  BibTeX: Download
• Schäfer M., Salinas Y., Enzenhofer F., Bruggemann O., Martinez-Manez R., Rabenstein R., Schober R., Haselmayr W., Ruderer A.:
  Channel Responses for the Molecule Release from Spherical Homogeneous Matrix Carriers
  In: IEEE Transactions on Molecular, Biological and Multi-Scale Communications (2022), S. 1-1
  ISSN: 2372-2061
  DOI: 10.1109/TMBMC.2022.3182571
  BibTeX: Download

2021

• Haselmayr W., Hyttinen J., Schäfer M., Femminella M., Morris RJ., Lenk K., Noel A., Barros MT.:
  Special Issue-Advances in Molecular Communications: Theory, Experiment, and Application
  In: IEEE Transactions on Molecular, Biological and Multi-Scale Communications 7 (2021), S. 69-72
  ISSN: 2372-2061
  DOI: 10.1109/TMBMC.2021.3089341
  BibTeX: Download
• Lotter S., Brand L., Schäfer M., Schober R.:
  Statistical Modeling of Airborne Virus Transmission Through Imperfectly Fitted Face Masks
  NANOCOM '21, Eight Annual ACM International Conference on Nanoscale Computing and Communication (Virtual Event, 7. September 2021 - 9. September 2021)
  DOI: 10.1145/3477206.3477478
  BibTeX: Download
• Lotter S., Schäfer M., Zeitler J., Schober R.:
  Receptor Saturation Modeling for Synaptic DMC
  ICC 2021 - IEEE International Conference on Communications (Montreal, QC, 14. Juli 2021 - 23. Juli 2021)
  DOI: 10.1109/ICC42927.2021.9500809
  BibTeX: Download
• Lotter S., Schäfer M., Zeitler J., Schober R.:
  Saturating Receiver and Receptor Competition in Synaptic DMC: Deterministic and Statistical Signal Models
  In: IEEE Transactions on Nanobioscience (2021), S. 1-1
  ISSN: 1536-1241
  DOI: 10.1109/TNB.2021.3092279
  BibTeX: Download
• Schäfer M., Salinas Y., Ruderer A., Enzenhofer F., Brueggemann O., Schober R., Haselmayr W.:
  Channel Modeling for Drug Carrier Matrices
  IEEE Global Communications Conference (GLOBECOM) (Madrid, 7. Dezember 2021 - 11. Dezember 2021)
  In: 2021 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM), NEW YORK: 2021
  DOI: 10.1109/GLOBECOM46510.2021.9685477
  BibTeX: Download
• Schäfer M., Wicke W., Brand L., Rabenstein R., Schober R.:
  Transfer Function Models for Cylindrical MC Channels with Diffusion and Laminar Flow
  In: IEEE Transactions on Molecular, Biological and Multi-Scale Communications (2021), S. 1-1
  ISSN: 2372-2061
  DOI: 10.1109/TMBMC.2021.3061030
  BibTeX: Download

2020

• Magarini M., Morris RJ., Ratti F., Schäfer M., Bassel GW., Awan H., Haselmayr W.:
  A Molecular Communications Framework for Understanding the Floral Transition
  7th ACM International Conference on Nanoscale Computing and Communication (Virtual Conference, 23. September 2020 - 25. September 2020)
  DOI: 10.1145/3411295.3411301
  BibTeX: Download
• Schäfer M.:
  Simulation of Distributed Parameter Systems by Transfer Function Models (Dissertation, 2020)
  URL: https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/13174
  BibTeX: Download
• Schäfer M., Schlecht SJ., Rabenstein R.:
  A String in a Room: Mixed-Dimensional Transfer Function Models for Sound Synthesis
  23rd International Conference on Digital Audio Effects (DAFx-20) (Vienna, 8. September 2020 - 12. September 2020)
  BibTeX: Download
• Schäfer M., Wicke W., Haselmayr W., Rabenstein R., Schober R.:
  Spherical Diffusion Model with Semi-Permeable Boundary: A Transfer Function Approach
  IEEE International Conference on Communications (ICC) (Dublin, 7. Juni 2020 - 11. Juni 2020)
  DOI: 10.1109/icc40277.2020.9149441
  BibTeX: Download

2019

• Schäfer M., Rabenstein R.:
  An Analytical Model of Diffusion in a Sphere with Semi-Permeable Boundary
  4th Workshop on Molecular Communications (Linz, 16. April 2019 - 18. April 2019)
  BibTeX: Download
• Schäfer M., Rabenstein R., Ruderer A.:
  An Eigenfunction Approach to Parameter Estimation for 1D Diffusion Problems
  European Control Conference (ECC) (Neapel, 25. Juni 2019 - 28. Juni 2019)
  DOI: 10.23919/ecc.2019.8795692
  BibTeX: Download
• Schäfer M., Rabenstein R., Schlecht S.:
  Feedback Structures for a Transfer Function Model of a Circular Vibrating Membrane
  IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (New Paltz, NY, 20. Oktober 2019 - 23. Oktober 2019)
  DOI: 10.1109/waspaa.2019.8937078
  BibTeX: Download
• Schäfer M., Werner M., Rabenstein R.:
  Physical Modeling in Sound Synthesis: Vibrating Plates
  26th International Congress on Sound and Vibration (ICSV26) (Montreal, 7. Juli 2019 - 11. Juli 2019)
  BibTeX: Download
• Schäfer M., Werner M., Rabenstein R.:
  Physikalische Modellierung schwingender Platten
  Jahrestagung für Akustik (DAGA) (Rostock, 18. März 2019 - 21. März 2019)
  BibTeX: Download
• Schäfer M., Wicke W., Grebenstein L., Strobl C., Stavracakis Peixoto R., Kirchner J., Burkovski A., Fischer G., Weigel R., Rabenstein R., Schober R.:
  Modeling an Experimental Biological Modulator for Molecular Communications by Electrical Circuits
  4th Workshop on Molecular Communications (Linz, 16. April 2019 - 18. April 2019)
  Open Access: https://molecularcommunications.eu/2019/images/Technical33.pdf
  BibTeX: Download
• Schäfer M., Wicke W., Rabenstein R., Schober R.:
  Analytical Models for Particle Diffusion and Flow in a Horizontal Cylinder with a Vertical Force
  IEEE International Conference on Communications (ICC) (Shanghai, 20. Mai 2019 - 24. Mai 2019)
  DOI: 10.1109/ICC.2019.8761148
  BibTeX: Download
• Strobl C., Schäfer M., Rabenstein R.:
  System Identification Methods for Refined Fault Detection in LVDC-Microgrids
  International Conference on DC Microgrids (ICDCM) (Matsue, 20. Mai 2019 - 23. Mai 2019)
  BibTeX: Download

2018

• Kram S., Schäfer M., Rabenstein R.:
  Approximation of enzyme kinetics for high enzyme concentration by a first order perturbation approach
  In: Journal of Mathematical Chemistry 56 (2018), S. 1153-1183
  ISSN: 0259-9791
  DOI: 10.1007/s10910-017-0848-3
  BibTeX: Download
• Rabenstein R., Schäfer M., Bauer J., Strobl C.:
  A Wave Digital Kalman Filter Approach for Fault Detection in DC Grids: A Case Study
  IEEE Int. Symp. on Circuits and Systems (ISCAS) (Florence, 27. Mai 2018 - 30. Mai 2018)
  DOI: 10.1109/iscas.2018.8351537
  BibTeX: Download
• Rabenstein R., Schäfer M., Strobl C.:
  Transfer Function Models for Distributed-Parameter Systems with Impedance Boundary Conditions
  In: International Journal of Control 91 (2018), S. 2726-2742
  ISSN: 1366-5820
  DOI: 10.1080/00207179.2017.1397753
  BibTeX: Download
• Schäfer M., Rabenstein R.:
  Modeling of Transport Processes in Bounded Domains
  3rd Workshop on Molecular Comunications (Ghent, 4. April 2018 - 6. April 2018)
  BibTeX: Download
• Schäfer M., Rabenstein R.:
  Physical Modelling of Guitar Strings with Realistic Boundary Conditions
  Jahrestagung für Akustik (DAGA) (München, 19. März 2018 - 22. März 2018)
  BibTeX: Download
• Schäfer M., Wicke W., Rabenstein R., Schober R.:
  An nD Model for a Cylindrical Diffusion-Advection Problem with an Orthogonal Force Component
  23rd International Conference on Digital Signal Processing (DSP) (Shanghai, 19. November 2018 - 21. November 2018)
  DOI: 10.1109/icdsp.2018.8631603
  BibTeX: Download
• Schäfer M., Wicke W., Rabenstein R., Schober R.:
  Transfer function models for particle diffusion in a horizontal cylindrical shape with a vertical force component
  (2018)
  URL: https://arxiv.org/abs/1803.10848
  BibTeX: Download
  (online publication)
• Strobl C., Köpf H., Mehl R., Ott L., Kaiser J., Gosses K., Schäfer M., Rabenstein R.:
  Safety Concepts and Circuit Protection for LVDC-Grids in Datacenters and in Telecommunications
  International Telecommunications Energy Conference (Intelec) (Turin, 7. Oktober 2018 - 10. Oktober 2018)
  DOI: 10.1109/intlec.2018.8612360
  BibTeX: Download
• Strobl C., Ott L., Kaiser J., Gosses K., Schäfer M., Rabenstein R.:
  Refined Fault Detection in LVDC-Grids with Signal Processing, System Identification and Machine Learning Methods
  29th International Conference on Electrical Contacts, Together with 64th IEEE Holm Conference on Electrical Contacts (Albuquerque, NM USA, 14. Oktober 2018 - 18. Oktober 2018)
  DOI: 10.1109/holm.2018.8611739
  BibTeX: Download
• Strobl C., Schäfer M., Rabenstein R.:
  Non-Recursive System Identification and Fault Detection in LVDC and ELVDC Grids
  IEEE Int. Symp. on Circuits and Systems (ISCAS) (Florence, 27. Mai 2018 - 30. Mai 2018)
  DOI: 10.1109/iscas.2018.8351714
  BibTeX: Download

2017

• Schäfer M., Rabenstein R.:
  A Continuous Frequency Domain Description of Adjustable Boundary Conditions for Multidimensional Transfer Function Models
  20th International Conference on Digital Audio Effects (DAFx-17) (Edinburgh, 5. September 2017 - 9. September 2017)
  BibTeX: Download
• Schäfer M., Rabenstein R.:
  A Transfer Function Model for 1D Diffusion Processes
  10th International Workshop on Multidimensional (nD) Systems (nDS 2017) (Zielona Góra, 13. September 2017 - 15. September 2017)
  DOI: 10.1109/NDS.2017.8070620
  BibTeX: Download
• Schäfer M., Rabenstein R.:
  Calculation of the Transformation Kernels for the Functional Transformation Method
  10th International Workshop on Multidimensional (nD) Systems (nDS 2017) (Zielona Góra, 13. September 2017 - 15. September 2017)
  DOI: 10.1109/NDS.2017.8070610
  BibTeX: Download
• Schäfer M., Rabenstein R., Strobl C.:
  A Multidimensional Transfer Function Model for Frequency Dependent Transmission Lines
  2017 IEEE International Symposium on Circuits and Systems (ISCAS) (Baltimore, MD, 28. Mai 2017 - 31. Mai 2017)
  DOI: 10.1109/ISCAS.2017.8050506
  URL: http://iscas2017.org/
  BibTeX: Download
• Strobl C., Ott L., Kaiser J., Streck M., Nothnagel F., Berger F., Schäfer M., Rabenstein R.:
  Resonant Electric Arcs in DC Microgrids with Low System Impedance in the VLF-Band
  IEEE Int. Conf. on DC Microgrids (Nürnberg, 27. Juni 2017 - 29. Juni 2017)
  DOI: 10.1109/ICDCM.2017.8001014
  URL: http://www.icdcm.co/
  BibTeX: Download
• Strobl C., Schäfer M., Bauer J., Rabenstein R.:
  Maschinelles Lernen für Schutzgeräte in DC-Netzen
  Albert-Keil-Kontaktseminar (Karlsruhe, 11. Oktober 2017 - 13. Oktober 2017)
  In: VDE-Bezirksverein Mittelbaden e.V. (Hrsg.): VDE-Fb. 73: Kontaktverhalten und Schalten, Berlin: 2017
  BibTeX: Download
• Strobl C., Schäfer M., Rabenstein R., Ott L., Kaiser J.:
  Schutzorgane und -konzepte in Niederspannungs-Gleichstromnetzen – Modellierung von Komponenten, Fehlersituationen und Gesamtsystem
  Workshop der ASIM/GI - Fachgruppen STS und GMMS (Ulm, 9. März 2017 - 10. März 2017)
  URL: http://studium.hs-ulm.de/de/inst/m/asim/
  BibTeX: Download

2016

• Dehner G., Rabenstein R., Schäfer M., Strobl C.:
  Analysis of the Quantization Error in Digital Multipliers with Small Wordlength
  24th European Signal Processing Conference (EUSIPCO) (Budapest, 29. August 2016 - 2. September 2016)
  In: European Signal Processing Conf. (EUSIPCO) 2016
  DOI: 10.1109/EUSIPCO.2016.7760568
  BibTeX: Download
• Schäfer M., Frenstátský P., Rabenstein R.:
  A Physical String Model with Adjustable Boundary Conditions
  19th International Conference on Digital Audio Effects (DAFx-16) (Brno, 5. September 2016 - 9. September 2016)
  In: 19th International Conference on Digital Audio Effects (DAFx-16), Brno, Czech Republic: 2016
  BibTeX: Download
• Strobl C., Schäfer M., Rabenstein R.:
  An analytical fault model for direct current lines
  IEEE International Symposium on Circuits and Systems (ISCAS) (Montreal, 22. Mai 2016 - 25. Mai 2016)
  In: 2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 2016
  DOI: 10.1109/ISCAS.2016.7539004
  BibTeX: Download
• Strobl C., Schäfer M., Rabenstein R.:
  Predictive Circuit Protection for DC Grids
  28th International Conference on Electrical Contacts (ICEC) (Edinburgh, 6. Juni 2016 - 9. Juni 2016)
  In: 28th International Conference on Electrical Contacts (ICEC), Edinburgh, UK: 2016
  BibTeX: Download