Tiwari, R., S. K. Srivastava, and S. Thakur. “Common Fixed Point Theorems of Quadruple Mappings Satisfying \(CLR\) Property in \(G_p\) Metric Spaces With Applications”. Communications in Mathematics and Applications, vol. 11, no. 3, Sept. 2020, pp. 297-09, doi:10.26713/cma.v11i3.1402.