TY - JOUR AU - I. V. Gel'man AU - V. G. Maz'ya TI - Estimates on the boundary for differential operators with constant coefficients in a~half-space JO - Izvestiya. Mathematics PY - 1974 SP - 667 EP - 726 VL - 8 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1974_8_3_a11/ LA - en ID - IM2_1974_8_3_a11 ER -