TY - JOUR AU - Walczak, Zbigniew TI - Bernstein-Durrmeyer type operators JO - Communications in Mathematics PY - 2004 SP - 65 EP - 72 VL - 12 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/COMIM_2004__12_1_a8/ LA - en ID - COMIM_2004__12_1_a8 ER -