%0 Journal Article %A S. G. Kondratenya %A A. I. Yablonskii %T Conditions for the existence of solutions with singular initial conditions of a nonlinear system of two differential equations %J Differencialʹnye uravneniâ %D 1973 %P 1765-1773 %V 9 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_10_a2/ %G ru %F DE_1973_9_10_a2