@article{SM_1980_36_3_a5,
     author = {A. A. Panchishkin},
     title = {Symmetric squares of {Hecke} series and their values at integral points},
     journal = {Sbornik. Mathematics},
     pages = {365--387},
     publisher = {mathdoc},
     volume = {36},
     number = {3},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1980_36_3_a5/}
}