Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MP_2012_a14, author = {A. D. Mednykh}, title = {{\CYRO} {\cyrf}{\cyro}{\cyrr}{\cyrm}{\cyru}{\cyrl}{\cyre} {{\CYRB}{\cyrr}{\cyra}{\cyrh}{\cyrm}{\cyra}{\cyrg}{\cyru}{\cyrp}{\cyrt}{\cyrery}} {\cyrv}~{\cyrg}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyri} {{\CYRL}{\cyro}{\cyrb}{\cyra}{\cyrch}{\cyre}{\cyrv}{\cyrs}{\cyrk}{\cyro}{\cyrg}{\cyro}}}, journal = {Matematicheskoe Prosveshchenie}, pages = {172--180}, publisher = {mathdoc}, year = {2012}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_2012_a14/} }
A. D. Mednykh. О формуле Брахмагупты в~геометрии Лобачевского. Matematicheskoe Prosveshchenie, Matematicheskoe Prosveshchenie (2012), pp. 172-180. http://geodesic.mathdoc.fr/item/MP_2012_a14/