TY - JOUR AU - M. V. Talalaev TI - Classes of differential forms that are invariant under quasiconformal mappings JO - Matematičeskie trudy PY - 1987 SP - 149 EP - 151 VL - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MT_1987_9_a11/ LA - ru ID - MT_1987_9_a11 ER -