[1] M. Bukatin, R. Kopperman, S. Matthews, H. Pajoohesh, Partial metric spaces, Amer. Math. Mon., 116 (2009), 708-718.
[2] L.Ciric, B. Samet, H. Aydi, C. Vetro, Common fixed points of generalized contractions on partial metric spaces and an
application, Appl. Math. Comput., 218 (2011), 2398-2406.
[3] D. Dukic, Z. Kadelburg, S. Radenovic, Fixed points of Geraghty-type mappings in various generalized metric spaces, Abstr. Appl. Anal. 2011, Article ID 561245 (2011). doi:10.1155/2011/561245
[4] M. H. Escardo, Pcf extended with real numbers, Theor. Comput. Sci., 162 (1996), 79-115.
[5] R. Heckmann, Approximation of metric spaces by partial metric spaces, Appl. Categ. Struct., 7 (1999), 71-83.
[6] D. Ilic, V. Pavlovic, V. Rakocevic, Some new extensions of Banach's contraction principle to partial metric spaces, Appl. Math. Lett., 24 (2011), 1326-1330.
[7] E. Karapinar, Fixed point theorems for operators on partial metric spaces, Appl. Math. Lett., 24 (2011), 1894-1899.
[8] W. A. Kirk, P. S. Srinivasan, P. Veeramani, Fixed points for mappings satisfying cyclical contractive conditions, Fixed
Point Theory, 4 (2003), 79-89.
[9] S. G. Matthews, Partial metric topology, In: Proc. 8th Summer Conference on General Topology and Applications, Ann.
New York Acad. Sci., 728 (1994), 183-197.
[10] S. Oltra, O. Valero, Banach's fixed point theorem for partial metric spaces, Rend. Ist. Mat. Univ. Trieste, 36(2004), 17-26.
[11] B. E. Rhoades, A comparison of various definitions of contractive mappings, Trans. Amer. Math. Soc., 336 (1977), 257-290.
[12] V. M. Sehgal, A fixed point theorem for mappings with a contractive iterate, Proc. Amer. Math. Soc., 23 (1969), 631-634.
[13] O. Valero, On Banach fixed point theorems for partial metric spaces, Appl. Gen. Topol., 6 (2005), 229-240. 1
[14] D. Paesano, P. Vetro, Suzuki's type characterizations of completeness for partial metric spaces and fixed points for partially ordered metric spaces, Topol. Appl., 159 (2012), 911-920.