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Nashine, H.K.K. and Kadelburg, Z. 2013. Weaker cyclic (phi,phi)-contractive mappings with an application to integro-differential equations. Nonlinear Analysis: Modelling and Control. 18, 4 (Oct. 2013), 427–443. DOI:https://doi.org/10.15388/NA.18.4.13971.