Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MP_2011_a11, author = {G. A. Gal'perin and A. Yu. Plakhov}, title = {{\CYRO}{\cyrd}{\cyrn}{\cyra} {\cyrg}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyra}{\cyrya} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyra}, {\cyrp}{\cyrr}{\cyri}{\cyrv}{\cyro}{\cyrd}{\cyrya}{\cyrshch}{\cyra}{\cyrya} {\cyrk}~{\cyrb}{\cyri}{\cyrl}{\cyrl}{\cyri}{\cyra}{\cyrr}{\cyrd}{\cyrn}{\cyro}{\cyrm}{\cyru} {\cyrz}{\cyra}{\cyrk}{\cyro}{\cyrn}{\cyru} {\cyro}{\cyrt}{\cyrr}{\cyra}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya}}, journal = {Matematicheskoe Prosveshchenie}, pages = {176--181}, publisher = {mathdoc}, year = {2011}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_2011_a11/} }
G. A. Gal'perin; A. Yu. Plakhov. Одна геометрическая задача, приводящая к~биллиардному закону отражения. Matematicheskoe Prosveshchenie, Matematicheskoe Prosveshchenie (2011), pp. 176-181. http://geodesic.mathdoc.fr/item/MP_2011_a11/