TY - JOUR AU - W. Tung TI - The heightening property of direct values of generalized potentials for the comparison function of a general elliptic operator of second order JO - Differencialʹnye uravneniâ PY - 1966 SP - 266 EP - 294 VL - 2 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1966_2_2_a9/ LA - ru ID - DE_1966_2_2_a9 ER -