%0 Journal Article %A B. P. Bogoslovskii %T A certain form of moving singularities of a system of two nonlinear equations %J Differencialʹnye uravneniâ %D 1974 %P 351-354 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_2_a21/ %G ru %F DE_1974_10_2_a21