Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2014_5_a10, author = {V. Drozdov}, title = {{\CYRP}{\cyrya}{\cyrt}{\cyrsftsn} {\cyro}{\cyrk}{\cyrr}{\cyru}{\cyrzh}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyre}{\cyrishrt}}, journal = {Kvant}, pages = {50--52}, publisher = {mathdoc}, number = {5}, year = {2014}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2014_5_a10/} }
V. Drozdov. Пять окружностей. Kvant, no. 5 (2014), pp. 50-52. http://geodesic.mathdoc.fr/item/KVANT_2014_5_a10/