%0 Journal Article %A V. F. Lubyshev %T Multiple positive solutions of an elliptic equation with a convex–concave nonlinearity containing a sign-changing term %J Informatics and Automation %D 2010 %P 167-180 %V 269 %U http://geodesic.mathdoc.fr/item/TRSPY_2010_269_a13/ %G ru %F TRSPY_2010_269_a13