@article{NSJOM_1984__14__a12,
     author = {Stojakovi\'c Zoran and Pauni\'c Djura},
     title = {On class of n-groups},
     journal = {Novi Sad Journal of Mathematics},
     pages = {147-154},
     publisher = {mathdoc},
     volume = {14},
     year = {1984},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1984__14__a12/}
}