@article{NSJOM_1994_24_1a_2,
     author = {Imdad M and Ahmad Aqeell},
     title = {Four mappings with a 

 common fixed point},
     journal = {Novi Sad Journal of Mathematics},
     pages = {23-30},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1994},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1994_24_1a_2/}
}