@article{NSJOM_1986_16_1a_10,
     author = {Roger Yue Chi Ming},
     title = {On injective modules and 

 generalizations},
     journal = {Novi Sad Journal of Mathematics},
     pages = {121-136},
     year = {1986},
     volume = {16},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1986_16_1a_10/}
}