TY - JOUR AU - V. A. Gritsenko TI - Symmetric squares of zeta-functions for the principal congruence subgroup of the Siegel group of genus~2 JO - Sbornik. Mathematics PY - 1977 SP - 19 EP - 36 VL - 33 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1977_33_1_a1/ LA - en ID - SM_1977_33_1_a1 ER -