@article{RCM_1993__27_1-2_181887,
     author = {Jaime Rodr{\'\i}guez Montes},
     title = {Some  results on fixed and coincidence points of couples of maps in metric spaces},
     journal = {Revista colombiana de matematicas},
     pages = {249--252},
     publisher = {mathdoc},
     volume = {27},
     number = {1-2},
     year = {1993},
     zbl = {0796.54050},
     url = {http://geodesic.mathdoc.fr/item/RCM_1993__27_1-2_181887/}
}