@article{NSJOM_1990_20_1a_9,
     author = {Had\v{z}i\'c Olga},
     title = {A common fixed point 

 theorem for a family of mappings in convex metric spaces},
     journal = {Novi Sad Journal of Mathematics},
     pages = {89-95},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1990},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1990_20_1a_9/}
}