Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1990_26_2_a21, author = {V. N. Gorbuzov and S. N. Udot}, title = {Second order systems with quadratic nonlinearity of {Painlev\'e} type}, journal = {Differencialʹnye uravneni\^a}, pages = {345--348}, publisher = {mathdoc}, volume = {26}, number = {2}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1990_26_2_a21/} }
V. N. Gorbuzov; S. N. Udot. Second order systems with quadratic nonlinearity of Painlev\'e type. Differencialʹnye uravneniâ, Tome 26 (1990) no. 2, pp. 345-348. http://geodesic.mathdoc.fr/item/DE_1990_26_2_a21/