%0 Journal Article %A G. L. Alfimov %A M. E. Lebedev %T On regular and singular solutions for equation $u_{xx}+Q(x)u+P(x)u^3=0$ %J Ufa mathematical journal %D 2015 %P 3-16 %V 7 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UFA_2015_7_2_a0/ %G en %F UFA_2015_7_2_a0