TY - JOUR AU - V. F. Lubyshev TI - Multiple positive solutions of an elliptic equation with a convex–concave nonlinearity containing a sign-changing term JO - Informatics and Automation PY - 2010 SP - 167 EP - 180 VL - 269 UR - http://geodesic.mathdoc.fr/item/TRSPY_2010_269_a13/ LA - ru ID - TRSPY_2010_269_a13 ER -