TY - JOUR AU - L. N. Bondar' TI - Necessary conditions for the solvability of one class of boundary value problems for quasielliptic systems JO - Matematičeskie trudy PY - 2018 SP - 3 EP - 16 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MT_2018_21_1_a0/ LA - ru ID - MT_2018_21_1_a0 ER -