@article{TUW-110104, author = {Hlawatsch, Franz}, title = {Duality and classification of bilinear time-frequency signal representations}, journal = {IEEE Transactions on Signal Processing}, year = {1991}, volume = {vol. 39}, number = {no. 7}, pages = {1564--1574}, url = {http://publik.tuwien.ac.at/files/pub-et_11015.pdf} }