Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1970_191_4_a6, author = {P. D. Krut'ko}, title = {On the problem of the observation of nonlinear systems}, journal = {Doklady Akademii Nauk}, pages = {766--768}, publisher = {mathdoc}, volume = {191}, number = {4}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_191_4_a6/} }
P. D. Krut'ko. On the problem of the observation of nonlinear systems. Doklady Akademii Nauk, Tome 191 (1970) no. 4, pp. 766-768. http://geodesic.mathdoc.fr/item/DAN_1970_191_4_a6/