Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2010_2_a2, author = {V. Protasov}, title = {{\CYRG}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrya} {\cyrz}{\cyrv}{\cyre}{\cyrz}{\cyrd}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrn}{\cyre}{\cyrb}{\cyra}}, journal = {Kvant}, pages = {14--22}, publisher = {mathdoc}, number = {2}, year = {2010}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2010_2_a2/} }
V. Protasov. Геометрия звездного неба. Kvant, no. 2 (2010), pp. 14-22. http://geodesic.mathdoc.fr/item/KVANT_2010_2_a2/