CGAL 5.5.4 - 2D Triangulations on the Sphere
Bibliography
[1]

Manuel Caroli, Pedro MM de Castro, Sébastien Loriot, Olivier Rouiller, Monique Teillaud, and Camille Wormser. Robust and efficient Delaunay triangulations of points on or close to a sphere. In International Symposium on Experimental Algorithms, pages 462–473. Springer, 2010.

[2]

Olivier Devillers and Monique Teillaud. Perturbations and vertex removal in a 3D Delaunay triangulation. In Proc. 14th ACM-SIAM Sympos. Discrete Algorithms (SODA), pages 313–319, 2003.