1. R. Aboolian, Competitive facility location and design problem, Ph.D. thesis, University of Toronto, Toronto, Canada, 2002.
2. MULTILOCC, a multiple store location decision model;Achabal;Journal of Retailing,1982
3. Nonlinear Programming: Theory and Algorithms;Bazaraa,1993
4. Spatial interaction models and the location-allocation problem;Beaumont;Journal of Regional Science,1980
5. Locating multiple competitive facilities: Spatial interaction models with variable expenditures;Berman;Annals of Operations Research,2002