Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2017_1_a3, author = {M. A. Gorelov}, title = {{\CYRT}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyra} {{\CYRP}{\cyrt}{\cyro}{\cyrl}{\cyre}{\cyrm}{\cyre}{\cyrya}} {\cyri} {\cyrp}{\cyre}{\cyrr}{\cyre}{\cyrk}{\cyrl}{\cyra}{\cyrd}{\cyrery}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyre} {\cyrt}{\cyrr}{\cyre}{\cyru}{\cyrg}{\cyro}{\cyrl}{\cyrsftsn}{\cyrn}{\cyri}{\cyrk}{\cyro}{\cyrv}}, journal = {Kvant}, pages = {33--35}, publisher = {mathdoc}, number = {1}, year = {2017}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2017_1_a3/} }
M. A. Gorelov. Теорема Птолемея и перекладывание треугольников. Kvant, no. 1 (2017), pp. 33-35. http://geodesic.mathdoc.fr/item/KVANT_2017_1_a3/