TY - JOUR AU - Z. H. Van TI - The approximation of unbounded functions by modified Landau and Bernstein polynomials over the entire plane JO - Doklady Akademii Nauk PY - 1963 SP - 1195 EP - 1197 VL - 150 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1963_150_6_a1/ LA - ru ID - DAN_1963_150_6_a1 ER -