Harjani, J.; Sabetghadam, F.; Sadarangani, K. Fixed point theorems for cyclic weak contractions in partially ordered sets endowed with a complete metric. (English) Zbl 1299.54091 Carpathian J. Math. 29, No. 2, 179-186 (2013). MSC: 54H25 54F05 54E50 PDFBibTeX XMLCite \textit{J. Harjani} et al., Carpathian J. Math. 29, No. 2, 179--186 (2013; Zbl 1299.54091)
Harjani, J.; Sabetghadam, F.; Sadarangani, K. Fixed points for mappings of cyclical type in ordered metric spaces. (English) Zbl 1292.54024 Fixed Point Theory 14, No. 2, 369-378 (2013). MSC: 54H25 54F05 54E40 PDFBibTeX XMLCite \textit{J. Harjani} et al., Fixed Point Theory 14, No. 2, 369--378 (2013; Zbl 1292.54024) Full Text: Link