Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2015_1_a23, title = {{\CYRD}{\cyrv}{\cyra} {\cyrg}{\cyrr}{\cyra}{\cyrf}{\cyra}}, journal = {Kvant}, pages = {58--59}, publisher = {mathdoc}, number = {1}, year = {2015}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2015_1_a23/} }
Два графа. Kvant, no. 1 (2015), pp. 58-59. http://geodesic.mathdoc.fr/item/KVANT_2015_1_a23/