Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{TGS_1990__20_72548, author = {{\CYREREV}.{\CYRG}. {\CYRN}{\cyre}{\cyrishrt}{\cyrf}{\cyre}{\cyrl}{\cyrsftsn}{\cyrd}}, title = {{\CYRO} {\cyrv}{\cyrn}{\cyru}{\cyrt}{\cyrr}{\cyre}{\cyrn}{\cyrn}{\cyri}{\cyrh} {\cyrg}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrya}{\cyrh} {\cyrn}{\cyro}{\cyrr}{\cyrm}{\cyra}{\cyrl}{\cyri}{\cyrz}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrp}{\cyre}{\cyrn}{\cyrr}{\cyro}{\cyru}{\cyrz}{\cyri}{\cyra}{\cyrn}{\cyra}}, journal = {Trudy geometri\v{c}eskogo seminara}, pages = {70--73}, publisher = {mathdoc}, volume = {20}, year = {1990}, zbl = {0708.53027}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TGS_1990__20_72548/} }
Э.Г. Нейфельд. О внутренних геометриях нормализованного пенроузиана. Trudy geometričeskogo seminara, Tome 20 (1990), pp. 70-73. http://geodesic.mathdoc.fr/item/TGS_1990__20_72548/