[1]   R.L. Graham, D.E. Knuth, and O. Patashnik. Concrete Mathematics. Addison–Wesley Publ. Comp, second edition, 1994.

[2]   MatMod. Homepage for Learning Mathematical Modeling :

[3]   Hürlimann T. Reference Manual for the LPL Modeling Language, most recent version.

[4]   Hürlimann T. Mathematical Modeling and Optimization – An Essay for the Design of Computer-Based Modeling Tools. Kluwer Academic Publ., Dordrecht, habilitation at the university of fribourg edition, 1999.