TY - JOUR AU - V. Ya. Yakubov TI - A Dirac-type system with variable coefficients JO - Differencialʹnye uravneniâ PY - 1993 SP - 156 EP - 164 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1993_29_1_a19/ LA - ru ID - DE_1993_29_1_a19 ER -