%0 Journal Article %A V. G. Zhuravlev %T Explicit duality formulas for symplectic and orthogonal Hecke operators on theta-series of positive quadratic forms %J Sbornik. Mathematics %D 1987 %P 417-434 %V 58 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1987_58_2_a7/ %G en %F SM_1987_58_2_a7