@article{TUW-109018, author = {Sayed, A.H. and Rupp, Markus}, title = {An l2-stable Feedback Structure for Nonlinear Adaptive Filtering and Identification}, journal = {Automatica}, year = {1997}, volume = {Vol. 33}, number = {no. 1}, pages = {13--30}, url = {http://publik.tuwien.ac.at/files/pub-et_9863.pdf} }