TY - JOUR AU - A. V. Ivanov TI - Superextension-type functors and soft mappings JO - Matematičeskie zametki PY - 1984 SP - 103 EP - 108 VL - 36 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1984_36_1_a9/ LA - ru ID - MZM_1984_36_1_a9 ER -