1. K.I. Aardal, A. Hipolito, C.P.M. Van Hoesel, B. Jansen, C. Roos and T. Terlaky, A branch-and-cut algorithm for the frequency assignment problem, EUCLID CALMA Project,Delft and Eindhoven Universities of Technology, The Netherlands, (1995)
2. E. Aarts and J. Korst, Simulated Annealing and Boltzman Machines: A Stochastic Approach To Combinatorial Optimization and Neural Computing, John Wiley and Sons (1989).
3. I. Baybars, Optimal assignment of broadcasting frequencies, European Journal of Operations Research, Vol. 9, (1982) pp. 257–263.
4. E. A. Bender and H. S. Wilf, A theoretical analysis of backtracking in the graph coloring problem, Journal of Algorithms
6, (1985), pp. 275–282.
5. H.P. Benthem, GRAPH: Generating radio link frequency assignment problems heuristically, Master’s Thesis, Faculty of Technical Mathematics and Informatics, Delft University, Delft, The Netherlands, (1995).