TY - JOUR AU - I. Ts. Gokhberg AU - N. Ya. Krupnik TI - Singular integral operators with piecewise continuous coefficients and their symbols JO - Izvestiya. Mathematics PY - 1971 SP - 955 EP - 979 VL - 5 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1971_5_4_a11/ LA - en ID - IM2_1971_5_4_a11 ER -