Families of quasi-pseudo-metrics generated by probabilistic quasi-pseudo-metric spaces. Grabiec, Mariusz T., Cho, Yeol Je, Saadati, Reza (2007) Surveys in Mathematics and its Applications
Fixed point theorems in metric spaces and probabilistic metric spaces. Cho, Yeol Je, Park, Keun Saeng, Chang, Shihsen (1996) International Journal of Mathematics and Mathematical Sciences
Fixed points of mappings with diminishing probabilistic orbital diameters. Aalam, Irshad, Kumar, Naresh, Pant, B.D. (2010) Surveys in Mathematics and its Applications