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Neiske, Iris, Judith Osthushenrich, Niclas Schaper, Ulrike Trier, and Nerea Vöing, eds. Hochschule auf Abstand. Bielefeld, Germany: transcript Verlag, 2021.https://doi.org/10.14361/9783839456903 .
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Bender, Amelie, and Walter Sextro. “Hybrid Prediction Method for Remaining Useful Lifetime Estimation Considering Uncertainties.”https://doi.org/10.36001/phme.2021.v6i1.2843 __In Proceedings of the European Conference of the PHM Society 2021, edited by Phuchttps://doi.org/10.36001/phme.2021.v6i1.2843 __Do, Steve King, andhttps://doi.org/10.36001/phme.2021.v6i1.2843 __Olga Fink, Vol. 6, 2021.https://doi.org/10.36001/phme.2021.v6i1.2843  .
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Aimiyekagbon, Osarenren Kennedy, Amelie Bender, and Walter Sextro. “On the Applicability of Time Series Features as Health Indicators for Technical Systems Operating under Varying Conditions.” In Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021), n.d.
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Aimiyekagbon, Osarenren Kennedy, Lars Muth, Meike Claudia Wohlleben, Amelie Bender, and Walter Sextro. “Rule-Based Diagnostics of a Production Line.”https://doi.org/10.36001/phme.2021.v6i1.3042__In Proceedings of the European Conference of the PHM Society 2021, edited by Phuc Do, Steve King, and Olga Fink, 6:527–36, 2021.https://doi.org/10.36001/phme.2021.v6i1.3042 .
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Alhaddad, Samer, Jens Förstner, Stefan Groth, Daniel Grünewald, Yevgen Grynko, Frank Hannig, Tobias Kenter, et al. “The HighPerMeshes Framework for Numerical Algorithms on Unstructured Grids.”https://doi.org/10.1002/cpe.6616__Concurrency and Computation: Practice and Experience, 2021, e6616.https://doi.org/10.1002/cpe.6616 .
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Lammer, Christina. Andrea Karimé: Sterne im Kopf und ein unglaublicher Plan. Köln: Peter Hammer Verlag 2021. KIBUM “Wissenschaft in zehn Minuten.” Oldenburg: www.kibum.de (Thomas Boyken und Jörn Brüggemann), 2021.
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Hajlaoui, Mahdi, Stefano Ponzoni, Michael Deppe, Tobias Henksmeier, Donat Josef As, Dirk Reuter, Thomas Zentgraf, et al. “Extremely Low-Energy ARPES of Quantum Well States in Cubic-GaN/AlN and GaAs/AlGaAs Heterostructures.”https://doi.org/10.1038/s41598-021-98569-6__Scientific Reports 11 (2021).https://doi.org/10.1038/s41598-021-98569-6 .
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Boeddeker, Christoph, Frederik Rautenberg, and Reinhold Haeb-Umbach. “A Comparison and Combination of Unsupervised Blind Source Separation  Techniques.” In ITG Conference on Speech Communication, 2021.
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arXiv: 2106.05627

Boeddeker, Christoph, Wangyou Zhang, Tomohiro Nakatani, Keisuke Kinoshita, Tsubasa Ochiai, Marc Delcroix, Naoyuki Kamo, Yanmin Qian, and Reinhold Haeb-Umbach. “Convolutive Transfer Function Invariant SDR Training Criteria for Multi-Channel Reverberant Speech Separation.”https://doi.org/10.1109/icassp39728.2021.9414661__In ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2021.https://doi.org/10.1109/icassp39728.2021.9414661 .
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Schmalenstroeer, Joerg, Jens Heitkaemper, Joerg Ullmann, and Reinhold Haeb-Umbach. “Open Range Pitch Tracking for Carrier Frequency Difference Estimation from HF Transmitted Speech.” In 29th European Signal Processing Conference (EUSIPCO), 1–5, 2021.
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Hartung, Olaf. “Rezension von: Jörg van Norden, Thomas Must, Lars Deile, Peter Riedel, Susan Krause Und Wanda Schürenberg (Hgg.): Geschichtsdidaktische Grundbegriffe. Ein Bilderbuch Für Studium, Lehre Und Beruf. Hannover 2020.” H-Soz-Kult. Berlin: Clio-online - Historisches Fachinformationssystem e.V., 2021.
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Gburrek, Tobias, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. “Geometry Calibration in Wireless Acoustic Sensor Networks Utilizing DoA and Distance Information.”https://doi.org/10.1186/s13636-021-00210-x__EURASIP Journal on Audio, Speech, and Music Processing, 2021.https://doi.org/10.1186/s13636-021-00210-x .
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Gburrek, Tobias, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. “Iterative Geometry Calibration from Distance Estimates for Wireless Acoustic Sensor Networks.”https://doi.org/10.1109/icassp39728.2021.9413831__In ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2021.https://doi.org/10.1109/icassp39728.2021.9413831 .
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Gburrek, Tobias, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. “On Source-Microphone Distance Estimation Using Convolutional Recurrent Neural Networks.” In Speech Communication; 14th ITG-Symposium, 1–5, 2021.
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Chinaev, Aleksej, Gerald Enzner, Tobias Gburrek, and Joerg Schmalenstroeer. “Online Estimation of Sampling Rate Offsets in Wireless Acoustic Sensor Networks with Packet Loss.” In 29th European Signal Processing Conference (EUSIPCO), 1–5, 2021.
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Ebbers, Janek, Michael Kuhlmann, Tobias Cord-Landwehr, and Reinhold Haeb-Umbach. “Contrastive Predictive Coding Supported Factorized Variational Autoencoder for Unsupervised Learning of Disentangled Speech Representations.” In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 3860–3864, 2021.
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Offen, Christian, and Sina Ober-Blöbaum. “Bifurcation Preserving Discretisations of Optimal Control Problems.”https://doi.org/10.1016/j.ifacol.2021.11.099__IFAC-PapersOnLine, 2021.https://doi.org/10.1016/j.ifacol.2021.11.099 .
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arXiv: 2107.13853

Beyreuther, Elke, Julius Ratzenberger, Matthias Roeper, Benjamin Kirbus, Michael Rüsing, Liudmila I. Ivleva, and Lukas M. Eng. “Photoconduction of Polar and Nonpolar Cuts of Undoped Sr0.61B.39Nb2O6 Single Crystals.”https://doi.org/10.3390/cryst11070780__Crystals 11, no. 7 (2021).https://doi.org/10.3390/cryst11070780 .
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