Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2017_1_a9, author = {V. V. Ptushenko}, title = {{\CYRK}{\cyrr}{\cyri}{\cyrv}{\cyra}{\cyrya}, {\cyrp}{\cyre}{\cyrr}{\cyre}{\cyrv}{\cyre}{\cyrr}{\cyrn}{\cyru}{\cyrt}{\cyra}{\cyrya} {\cyrv}{\cyrv}{\cyre}{\cyrr}{\cyrh} {\cyrn}{\cyro}{\cyrg}{\cyra}{\cyrm}{\cyri}}, journal = {Kvant}, pages = {43--45}, publisher = {mathdoc}, number = {1}, year = {2017}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2017_1_a9/} }
V. V. Ptushenko. Кривая, перевернутая вверх ногами. Kvant, no. 1 (2017), pp. 43-45. http://geodesic.mathdoc.fr/item/KVANT_2017_1_a9/