1. Fixed Point Theory in PM-Spaces;Hadžić,2001
2. Probabilistic chains;Marcus;Aequationes Math.,1977
3. Ordered probabilistic metric spaces;Kent;J. Aust. Math. Soc. Ser. A,1989
4. Probabilistic Metric Spaces;Schweizer,1983
5. The metrization of SM-spaces;Schweizer;Pacific J. Math.,1960