@article{AA_1997_9_6_a5, author = {A. L. Likhtarnikov and V. A. Yakubovich}, title = {Dichotomy and stability of undetermined nonlinear systems in {Hilbert} spaces}, journal = {Algebra i analiz}, pages = {132--155}, publisher = {mathdoc}, volume = {9}, number = {6}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AA_1997_9_6_a5/} }