1. Adler, N., 1999. The choice of optimal multi-hub networks in a liberalized aviation market. Ph.D., Faculty of Management, Tel Aviv University, Israel
2. Adler, N., Berechman, J., 2000. Choice of an optimal network in a liberalized aviation market. Transportation Research A, forthcoming
3. Translation invariance in data envelopment analysis;Ali;Operations Research Letters,1990
4. A procedure for ranking efficient units in data envelopment analysis;Andersen;Management Science,1993
5. Nonparametric models for spatial efficiency;Athanassopoulos;Journal of Productivity Analysis,1995