Common fixed point theorems of Gregus type for weakly compatible mappings satisfying contractive conditions of integral type (Q868761)

The authors obtain several common fixed point theorems for four mappings satisfying a contractive or strict contractive condition of integral type in metric spaces (too complicated to be reproduced here) by using the concept of weak compatibility and a common property (EA) introduced by \textit{Y.--C.\thinspace Liu, J.\, Wu} and \textit{Z.--X.\thinspace Li} [Int.\ J.\ Math.\ Math.\ Sci.\ 2005, No.\,9, 3045--3055 (2005; Zbl 1087.54019)].