TY - JOUR AU - Choi Sung Bong TI - The Neumann problem for the biharmonic equation JO - Differencialʹnye uravneniâ PY - 1991 SP - 169 EP - 172 VL - 27 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1991_27_1_a23/ LA - ru ID - DE_1991_27_1_a23 ER -