References
- Knuth , D.E. 1981 . The Art of Computer Programming , Addison-Wesley .
- Lovasz , L. 1986 . An Algorithmic Theory of Numbers, Graphs and Complexity , Pennsylvania : Society for Industrial and Applied Mathematics .
- Melzak , Z.A. 1973 . A Companion to Concrete Mathematics , New York : Wiley Interscience .
- Megiddo , N. and Supowit , K.J . 1984 . On the complexity of some common geometric location problems . SIAM J. COMPUT , 13 : 182 – 196 .
- Metha , S. , Mukherjee , M. and Nagy , G. . Constrained integer approximation to 2-D line intersections . Second Canadian Conf . Ottawa, Canada. pp. 302 – 305 . Computational Geometry .
- Papadimitriou , C.H. and Steiglitz , K. 1982 . Combinatorial Optimization: Algorithms and Complexity , New Jersey : Prentice-Hall .
- Preparata , F.P. and Shamos , M.I. 1995 . Computational Geometry: An Introduction , New York : Springer-Verlag .
- Weber A. Uber den Standort der Industries Erster Teil: Reine Theorie dis Standorts Mit einem mathematischen Anhang von Georg Pick (Mohr, J. C. B. (Paul Siebeck) Tubingen 1909