PopaV., and PatriciuA.-M. “Fixed Point Theorems for Two Pairs of Mappings Satisfying a New Type of Common Limit Range Property in G_p Metric Spaces”. Annales Mathematicae Silesianae, Vol. 32, May 2018, pp. 295-12, https://journals.us.edu.pl/index.php/AMSIL/article/view/13928.