@incollection{TUW-107247, author = {Matz, Gerald and Hlawatsch, Franz}, title = {Time-Varying Power Spectra of Nonstationary Random Processes}, booktitle = {Time Frequency Signal Analysis and Processing: A Comprehensive Reference}, year = {2003}, editor = {Boashash, Boualem}, pages = {400--409}, publisher = {Elsevier}, address = {Elsevier, Oxford, UK}, url = {http://publik.tuwien.ac.at/files/pub-et_7973.pdf}, isbn = {0-08-044335-4} }