Younis M., Stretenović A., and Radenović S. “Some Critical Remarks on ‘Some New Fixed Point Results in Rectangular Metric Spaces With an Application to Fractional-Order Functional Differential equations’”. Nonlinear Analysis: Modelling and Control, Vol. 27, no. 1, Jan. 2022, pp. 163-78, doi:10.15388/namc.2022.27.25193.