@article{PIM_1976_N_S_20_34_a9,
     author = {Ljubomir \'Ciri\'c},
     title = {A {Certain} {Class} {Of} {Maps} {And} {Fixed} {Point} {Theorems}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {73 },
     publisher = {mathdoc},
     volume = {_N_S_20},
     number = {34},
     year = {1976},
     url = {http://geodesic.mathdoc.fr/item/PIM_1976_N_S_20_34_a9/}
}