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Projective Differential Geometry Old and New (From the Schwarzian Derivative to the Cohomology of Diffeomorphism Groups) || Vertices of projective curves
Ovsienko, V., Tabachnikov, S.Volume:
10.1017/CB
Year:
2004
DOI:
10.1017/cbo9780511543142.005
File:
PDF, 435 KB
2004