Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1968_4_6_a2, author = {S. G. Kondratenya and A. I. Yablonskii}, title = {Mobile singularities of systems of two differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {983--990}, publisher = {mathdoc}, volume = {4}, number = {6}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1968_4_6_a2/} }
S. G. Kondratenya; A. I. Yablonskii. Mobile singularities of systems of two differential equations. Differencialʹnye uravneniâ, Tome 4 (1968) no. 6, pp. 983-990. http://geodesic.mathdoc.fr/item/DE_1968_4_6_a2/