Ljubomir Ciric Arif Rafiq Stojan Radenovic Miloje Rajovic Jeong Sheok Ume On Mann implicit iterations for strongly accretive and strongly pseudo-contractive mappings. 128-137 2008 198 Applied Mathematics and Computation 1 http://dx.doi.org/10.1016/j.amc.2007.08.027 db/journals/amc/amc198.html#CiricRRRU08