Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2012_1_a2, author = {G. Ustyugina and Yu. E. Ustyugin}, title = {{\CYRP}{\cyre}{\cyrr}{\cyro} {\cyrp}{\cyrt}{\cyri}{\cyrc}{\cyrery} {\cyri} {\cyrv}{\cyro}{\cyrz}{\cyrd}{\cyru}{\cyrsh}{\cyrn}{\cyrery}{\cyrishrt} {\cyrp}{\cyro}{\cyrl}{\cyre}{\cyrt}}, journal = {Kvant}, pages = {14--16}, publisher = {mathdoc}, number = {1}, year = {2012}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2012_1_a2/} }
G. Ustyugina; Yu. E. Ustyugin. Перо птицы и воздушный полет. Kvant, no. 1 (2012), pp. 14-16. http://geodesic.mathdoc.fr/item/KVANT_2012_1_a2/