@conference {uvigo:nlpoly, title = {Toward a theory of multirate nonlinear systems}, booktitle = {IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC)}, year = {2006}, address = {Cannes, France}, keywords = {multirate systems, nonlinear filters, polyphase filters}, author = {R. L{\'o}pez-Valcarce and Soura Dasgupta} }