@article{NSJOM_1995_25_2a_1,
     author = {Do Hong 

 Tan},
     title = {Some 

 common fixed point theorems for mappings of contractive type},
     journal = {Novi Sad Journal of Mathematics},
     pages = {9-22},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {1995},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1995_25_2a_1/}
}