TY - JOUR AU - S. A. Gritsenko TI - Approximate functional equation for the~product of two Dirichlet $L$-functions JO - Izvestiya. Mathematics PY - 1995 SP - 255 EP - 280 VL - 45 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1995_45_2_a1/ LA - en ID - IM2_1995_45_2_a1 ER -