@article{DAN_1992_325_2_a1,
     author = {V. A. Gurvich},
     title = {Bilinear forms of enumerated graphs},
     journal = {Doklady Akademii Nauk},
     pages = {221--226},
     year = {1992},
     volume = {325},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_325_2_a1/}
}