Common fixed points of two quasi-contractive operators in normed spaces by iteration

We prove a theorem to approximate common fixed points of two quasi-contractive operators on a normed space through an iteration process with errors and more general than the Ishikawa iteration process. Our result generalizes and improves upon, among others, the corresponding result of Berinde [1] in the following two different directions: (i) more general iteration process with error terms (ii) wider class of mappings.