@article{NSJOM_1996_26_1a_1,
     author = {Jain R. 

 K. and Sahu H. K. and Fisher Brian},
     title = {Related 

 fixed point theorems for three metric spaces},
     journal = {Novi Sad Journal of Mathematics},
     pages = {11-17},
     year = {1996},
     volume = {26},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1996_26_1a_1/}
}