Ovsienko, V., & Tabachnikov, S. (2005). Projective differential geometry old and new: From the Schwarzian derivative to the cohomology of diffeomorphism groups. New York: Cambridge University Press.
Trích dẫn kiểu ChicagoOvsienko, Valentin., và Serge Tabachnikov. Projective Differential Geometry Old and New: From the Schwarzian Derivative to the Cohomology of Diffeomorphism Groups. New York: Cambridge University Press, 2005.
MLA引文Ovsienko, Valentin., và Serge Tabachnikov. Projective Differential Geometry Old and New: From the Schwarzian Derivative to the Cohomology of Diffeomorphism Groups. New York: Cambridge University Press, 2005.
警告：這些引文格式不一定是100％准確.