1. Altman's contractors and fixed points of multivalued mappings;Balakrishna Reddy;Pacific J. Math.,1982
2. Probabilistic contractors and the solutions of nonlinear equations in probabilistic normed spaces;Chang;Chinese Sci. Bull.,1990
3. Nonlinear operator equations with probabilistic contractors in probabilistic normed spaces;Chang;Commun. Korean Math. Soc.,1996
4. Probabilistic Metric Spaces and Nonlinear Operator Theory;Chang,1994