TY - JOUR AU - A. A. Arkhipova TI - On least supersolutions for a~problem with an obstacle JO - Izvestiya. Mathematics PY - 1973 SP - 1153 EP - 1183 VL - 7 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1973_7_5_a8/ LA - en ID - IM2_1973_7_5_a8 ER -