Ovsienko, V., & Tabachnikov, S. (2005). Projective differential geometry old and new: From the Schwarzian derivative to the cohomology of diffeomorphism groups. Cambridge, UK ; New York: Cambridge University Press.
Chicago-стиль цитированияOvsienko, Valentin., và Serge Tabachnikov. Projective Differential Geometry Old and New: From the Schwarzian Derivative to the Cohomology of Diffeomorphism Groups. Cambridge, UK ; New York: Cambridge University Press, 2005.
MLA-цитированиеOvsienko, Valentin., và Serge Tabachnikov. Projective Differential Geometry Old and New: From the Schwarzian Derivative to the Cohomology of Diffeomorphism Groups. Cambridge, UK ; New York: Cambridge University Press, 2005.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.