@article{NSJOM_1992_22_1a_9,
     author = {Mohd,Quadri Murtaza A.},
     title = {Two commutativity results 

 for rings},
     journal = {Novi Sad Journal of Mathematics},
     pages = {107-110},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1992},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1992_22_1a_9/}
}