@articleWindmann_Haeb-Umbach_2009, title=Parameter Estimation of a State-Space Model of Noise for Robust Speech Recognition, volume=17, DOI=10.1109/TASL.2009.2023172, number=8, journal=IEEE Transactions on Audio, Speech, and Language Processing, author=Windmann, Stefan and Haeb-Umbach, Reinhold, year=2009, pages=1577–1590 
LibreCat: /record/11938
DOI: 10.1109/TASL.2009.2023172

@inproceedingsWarsitz_Haeb-Umbach_2004, title=Robust speaker direction estimation with particle filtering, DOI=10.1109/MMSP.2004.1436569, booktitle=IEEE Workshop on Multimedia Signal Processing (MMSP 2004), author=Warsitz, Ernst and Haeb-Umbach, Reinhold, year=2004, pages=367–370 
LibreCat: /record/11931
DOI: 10.1109/MMSP.2004.1436569