TY - JOUR AU - Nguen Tkhan' Nam TI - A problem with an oblique derivative for a second-order equation in a domain with edges JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1989 SP - 67 EP - 69 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1989_5_a16/ LA - ru ID - VMUMM_1989_5_a16 ER -