@inproceedingsHennecke_Ploetz_Fink_Schmalenstroeer_Haeb-Umbach_2009, title=A hierarchical approach to unsupervised shape calibration of microphone array networks, DOI=10.1109/SSP.2009.5278589, booktitle=IEEE/SP 15th Workshop on Statistical Signal Processing (SSP 2009), author=Hennecke, Marius and Ploetz, Thomas and Fink, Gernot A. and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold, year=2009, pages=257–260