@article{TUW-103099, author = {B{\"o}lcskei, Helmut and Hlawatsch, Franz}, title = {Discrete Zak transforms, polyphase transforms, and applications}, journal = {IEEE Transactions on Signal Processing}, year = {1997}, volume = {vol. 45}, number = {no. 4}, pages = {851--866}, url = {http://publik.tuwien.ac.at/files/pub-et_3333.pdf} }