TY - JOUR AU - I. V. Gel'man AU - V. G. Maz'ya TI - Estimates for differential operators with constant coefficients in a halfspace JO - Doklady Akademii Nauk PY - 1972 SP - 751 EP - 754 VL - 202 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1972_202_4_a2/ LA - ru ID - DAN_1972_202_4_a2 ER -