Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MP_2016_a4, author = {G. A. Gal'perin and Ch. Delman}, title = {{\CYRP}{\cyro}{\cyrv}{\cyre}{\cyrs}{\cyrt}{\cyrsftsn} {\cyro} {\cyrt}{\cyrr}{\cyryo}{\cyrh} {\cyrk}{\cyrr}{\cyru}{\cyrg}{\cyra}{\cyrh}}, journal = {Matematicheskoe Prosveshchenie}, pages = {111--134}, publisher = {mathdoc}, year = {2016}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_2016_a4/} }
G. A. Gal'perin; Ch. Delman. Повесть о трёх кругах. Matematicheskoe Prosveshchenie, Matematicheskoe Prosveshchenie (2016), pp. 111-134. http://geodesic.mathdoc.fr/item/MP_2016_a4/