Leutnant, Volker, and Reinhold Haeb-Umbach. “On the Estimation and Use of Feature Reliability Information for Noise Robust Speech Recognition.” International Conference on Acoustics (NAG/DAGA 2009), 2009.

Leutnant, Volker, and Reinhold Haeb-Umbach. “An Analytic Derivation of a Phase-Sensitive Observation Model for Noise Robust Speech Recognition.” Interspeech 2009, 2009.

Peschke, Sven, et al. “A GPS Positioning Approach Exploiting GSM Velocity Estimates.”10.1109/WPNC.2009.4907827__6th Workshop on Positioning Navigation and Communication (WPNC 2009), 2009, pp. 195–202, doi:10.1109/WPNC.2009.4907827.

Peschke, Sven, et al. “Verbesserung von GPS-Basierter Ortung Durch GSM-Geschwindigkeitsschaetzungen.” DGON Navigationskonvent 2009, 2009.

Windmann, Stefan, and Reinhold Haeb-Umbach. “Approaches to Iterative Speech Feature Enhancement and Recognition.”10.1109/TASL.2009.2014894__IEEE Transactions on Audio, Speech, and Language Processing, vol. 17, no. 5, 2009, pp. 974–84, doi:10.1109/TASL.2009.2014894.

Windmann, Stefan, and Reinhold Haeb-Umbach. “Parameter Estimation of a State-Space Model of Noise for Robust Speech Recognition.”10.1109/TASL.2009.2023172__IEEE Transactions on Audio, Speech, and Language Processing, vol. 17, no. 8, 2009, pp. 1577–90, doi:10.1109/TASL.2009.2023172.

Sommer, Christoph, et al. “Simulation of Ad Hoc Routing Protocols Using OMNeT++.”10.1007/s11036-009-0174-5__Mobile Networks and Applications, 2009, pp. 786–801, doi:10.1007/s11036-009-0174-5.

Börstler, Jürgen, et al. “An Evaluation of Object Oriented Example Programs in Introductory Programming Textbooks.” SIGCSE Bulletin, vol. 41, no. 4, 2009, pp. 126–43.

Schulte, Carsten, and Robert Tolksdorf. “Qualitätssicherung in Einer Interaktiven Und Lerneraktivierenden E-Learning-Umgebung.” DeLFI Workshops, Logos Verlag, 2009, pp. 219–25.

Ehlert, Albrecht, and Carsten Schulte. “Empirical Comparison of Objects-First and Objects-Later.” ICER, ACM, 2009, pp. 15–26.