@incollection{TUW-107257, author = {Hlawatsch, Franz and Taub{\"o}ck, Georg}, title = {The Covariance Theory of Time-Frequency Analysis}, booktitle = {Time Frequency Signal Analysis and Processing A Comprehensive Reference}, year = {2003}, editor = {Boashash, Boualem}, pages = {102--113}, publisher = {Elsevier}, address = {Oxford, UK}, url = {http://publik.tuwien.ac.at/files/pub-et_7983.pdf} }