Fixed point theorems for mappings with convex diminishing diameters on cone metric spaces. - Shahrazad H. Alnafei; Stojan Radenovic; Naseer Shahzad (Appl. Math. Lett., 2011)

Fixed point theorems for convex contraction mappings on cone metric spaces. - Mohammad A. Alghamdi; Shahrazad H. Alnafei; Stojan Radenovic; Naseer Shahzad (Math. Comput. Model., 2011)