%0 Journal Article %A V. N. Gorbuzov %A S. N. Udot %T Second order systems with quadratic nonlinearity of Painlev\'e type %J Differencialʹnye uravneniâ %D 1990 %P 345-348 %V 26 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_2_a21/ %G ru %F DE_1990_26_2_a21