@article{DAN_1995_344_4_a1,
     author = {S. A. Gritsenko},
     title = {An approximate functional equation for $L(s,\chi_1)L(s,\chi_2)$},
     journal = {Doklady Akademii Nauk},
     pages = {442--443},
     publisher = {mathdoc},
     volume = {344},
     number = {4},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_344_4_a1/}
}