TY - JOUR AU - Ya. Sh. Il'yasov TI - On a~condition necessary for the existence of positive solutions to a~class of equations with $p$-Laplace operator JO - Matematičeskie zametki PY - 1999 SP - 312 EP - 314 VL - 66 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1999_66_2_a19/ LA - ru ID - MZM_1999_66_2_a19 ER -