Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1990_313_1_a3, author = {N. D. Pokrovskaya}, title = {Forced periodic regimes in control systems with regularization by}, journal = {Doklady Akademii Nauk}, pages = {21--24}, publisher = {mathdoc}, volume = {313}, number = {1}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_313_1_a3/} }
N. D. Pokrovskaya. Forced periodic regimes in control systems with regularization by. Doklady Akademii Nauk, Tome 313 (1990) no. 1, pp. 21-24. http://geodesic.mathdoc.fr/item/DAN_1990_313_1_a3/