TY - JOUR AU - N. P. Erugin TI - The analytic and the qualilative theory, and also the asymptotic behavior of the solutions of the system $dx/dz=2$ $\surd P(x,\,y)/z$. $dy/dz=2$ $\surd P(x,\,y)/(1-z)$. II JO - Differencialʹnye uravneniâ PY - 1974 SP - 1964 EP - 1987 VL - 10 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1974_10_11_a6/ LA - ru ID - DE_1974_10_11_a6 ER -