Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2019_6_a3, author = {P. Sergeev and A. Savel'eva}, title = {{\CYRV}{\cyro}{\cyrk}{\cyrr}{\cyru}{\cyrg} {\cyro}{\cyrr}{\cyrt}{\cyro}{\cyrt}{\cyrr}{\cyre}{\cyru}{\cyrg}{\cyro}{\cyrl}{\cyrsftsn}{\cyrn}{\cyri}{\cyrk}{\cyra}}, journal = {Kvant}, pages = {26--31}, publisher = {mathdoc}, number = {6}, year = {2019}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2019_6_a3/} }
P. Sergeev; A. Savel'eva. Вокруг ортотреугольника. Kvant, no. 6 (2019), pp. 26-31. http://geodesic.mathdoc.fr/item/KVANT_2019_6_a3/