TY - JOUR AU - B. N. Khimchenko TI - The behavior of a superharmonic function near the boundary of a region of type $A^{(1)}$ JO - Differencialʹnye uravneniâ PY - 1969 SP - 1845 EP - 1853 VL - 5 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1969_5_10_a10/ LA - ru ID - DE_1969_5_10_a10 ER -