@article{NSJOM_1984__14__a21,
     author = {Had\v{z}i\'c Olga and Gaji\'c Ljiljana},
     title = {Gaji\'c, {Ljiljana,} {Common} 

 fixed point theorems in metric spaces},
     journal = {Novi Sad Journal of Mathematics},
     pages = {1-11},
     publisher = {mathdoc},
     volume = {14},
     year = {1984},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1984__14__a21/}
}