Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1981_17_4_a18, author = {N. D. Vasilevich and V. I. Gromak}, title = {Integrability of complex {Pfaff} equations}, journal = {Differencialʹnye uravneni\^a}, pages = {735--737}, publisher = {mathdoc}, volume = {17}, number = {4}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1981_17_4_a18/} }
N. D. Vasilevich; V. I. Gromak. Integrability of complex Pfaff equations. Differencialʹnye uravneniâ, Tome 17 (1981) no. 4, pp. 735-737. http://geodesic.mathdoc.fr/item/DE_1981_17_4_a18/