%0 Journal Article %A A. A. Panchishkin %T Symmetric squares of Hecke series and their values at integral points %J Sbornik. Mathematics %D 1980 %P 365-387 %V 36 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1980_36_3_a5/ %G en %F SM_1980_36_3_a5