TY - JOUR AU - N. A. Zhura TI - Boundary value problems of Bitsadze--Samarski{\v\i} type for systems that are elliptic in the Douglas--Nirenberg sense JO - Differencialʹnye uravneniâ PY - 1992 SP - 81 EP - 91 VL - 28 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1992_28_1_a9/ LA - ru ID - DE_1992_28_1_a9 ER -