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DOI: 10.1016/j.camwa.2011.07.061

Wei-Shih Du (2011) The Existence of Cone Critical Point and Common Fixed Point with Applications, **Journal of Applied Mathematics**, 2011 : 1

DOI: 10.1155/2011/985797

Marija P Stanić (2012) Common fixed point under contractive condition of Ćirić’s type on cone metric type spaces, **Fixed Point Theory and Applications**, 2012 (1) : 35

DOI: 10.1186/1687-1812-2012-35