1.Francisco Gomez, Ferran Hurtado, J. A. Sellares and Godfried T. Toussaint, "Nice perspetive projections," Journal of Visual Communication and Image Representation, Vol. 12, No. 4, 2001, pp. 387-400.
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2.Godfried T. Toussaint, "The complexity of computing nice viewpoints of objects in space," Keynote Address, Vision Geometry IX, Proc. SPIE International Symposium on Optical Science and Technology, 30 July to 4 August 2000, San Diego, California.
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3.J.L. Bentley and T.A. Ottmann, Algorithms for reporting and counting geometric intersections, IEEE Trans. Comput 8, pp 300-307, 1979

4.H. Edelsbrunner, J. O'Rourke and R. Seidel, Constructing arrangements of lines and hyperplanes with applications, SIAM J. Computing 15 (2), pp 341-363, 1986

5. Perspective projection: