1. Alber, S.R., Heward, W.L.: Twenty-five behavior traps guaranteed to extend your students’ academic and social skills. Interv. School Clin. 31, 285–289 (1996)
2. Appadurai, A.: The capacity to aspire: culture and the terms of recognition. In: Rao, V., Walton, M. (eds.) Culture and Public Action: A cross Disciplinary Dialog in Development Policy. Stanford University, CA (2004)
3. Azariadis, C., Stachurski, J.: Poverty traps. In: Aghion, P., Durlauf, S. (eds.) Handbook of Economic Growth. Elsevier, Amsterdam (2004)
4. Bao, T.Q., Mordukhovich, B.S.: Variational principles for set-valued mappings with applications to multiobjective optimization. Control Cybern. 36, 531–562 (2007)
5. Bao, T.Q., Mordukhovich, B.S.: Relative Pareto minimizers for multiobjective problems: existence and optimality conditions. Math. Program. 122, 301–347 (2010)