A. Ullah, I. A. Khan, and N. Mehmood, “Fixed Point and Common Fixed Point Results of \(D_F\)-Contractions via Measure of Non-compactness with Applications”, Comm. Math. Appl., vol. 9, no. 1, pp. 53–62, Apr. 2018, doi: 10.26713/cma.v9i1.926.