TY - JOUR AU - V. R. Fridlender TI - Polynomial matrices and systems of partial differential equations JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1966 SP - 118 EP - 123 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1966_5_a14/ LA - ru ID - IVM_1966_5_a14 ER -