D. D. Sleator, R. E. Tarjan, W. P. Thurston, Rotation Distance, Triangulations, and Hyperbolic Geometry, Journal of the American Mathematical Society, Vo.1, No.3., 1988 Full Text (PDF)
D. D. Sleator, R. E. Tarjan, W. P. Thurston, Rotation Distance, Triangulations, and Hyperbolic Geometry, Journal of the American Mathematical Society, Vo.1, No.3., 1988
Full Text (PDF)