@article{SM_1976_28_4_a0,
     author = {S. A. Evdokimov},
     title = {Euler products for congruence subgroups of the {Siegel} group of genus~$2$},
     journal = {Sbornik. Mathematics},
     pages = {431--458},
     year = {1976},
     volume = {28},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1976_28_4_a0/}
}