TY - JOUR AU - V. V. Sergeichuk TI - Classification problems for systems of forms and linear mappings JO - Izvestiya. Mathematics PY - 1988 SP - 481 EP - 501 VL - 31 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1988_31_3_a2/ LA - en ID - IM2_1988_31_3_a2 ER -