TY - JOUR AU - Voldřich, Josef TI - The ranges of nonlinear operators of the polynomial type JO - Commentationes Mathematicae Universitatis Carolinae PY - 1982 SP - 671 EP - 684 VL - 23 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1982__23_4_a4/ LA - en ID - CMUC_1982__23_4_a4 ER -