@article{10_1017_S0017089500004717,
     author = {Khan, M. S.},
     title = {Fixed points and their approximation in {Banach} spaces for certain commuting mappings},
     journal = {Glasgow mathematical journal},
     pages = {1--6},
     year = {1982},
     volume = {23},
     number = {1},
     doi = {10.1017/S0017089500004717},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500004717/}
}