Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1995_31_2_a6, author = {O. V. Khramtsov}, title = {Controllability of linear discrete {Pfaffian} systems in involution}, journal = {Differencialʹnye uravneni\^a}, pages = {239--244}, publisher = {mathdoc}, volume = {31}, number = {2}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1995_31_2_a6/} }
O. V. Khramtsov. Controllability of linear discrete Pfaffian systems in involution. Differencialʹnye uravneniâ, Tome 31 (1995) no. 2, pp. 239-244. http://geodesic.mathdoc.fr/item/DE_1995_31_2_a6/