@article{NSJOM_1985_15_2a_0,
     author = {Had\v{z}i\'c 

 Olga},
     title = {Some common fixed point theorems in convex metric 

 spaces},
     journal = {Novi Sad Journal of Mathematics},
     pages = {1-13},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1985},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1985_15_2a_0/}
}