1. Zhang Shi-sheng, Basic theory and applications of probabilistic metric spaces (1),Applied Mathematics and Mechanics,9, 2 (1988), 123–133.
2. Zhang Shi-sheng,Fixed Point Theory and Applications, Chongqing Publishing House, Chongqing (1984). (in Chinese)
3. Zhang Shi-sheng. The metrization of probabilistic metric spaces with applications, Zbornike radova Prirodno-matematickog fakulteta,u Novom Sadu,Serijaza matematiku,15, 1 (1985), 107–117.
4. Hadzic, O., Some fixed point theorems in probabilistic metric space, Ibid,,15, 1 (1985), 23–36.
5. Zhang Shi-sheng, On the theory of probabilistic metric spaces with applications,Z. Wahrscheinlichkeitstheorie verw. Gebiete,67 (1984), 85–94.