@article{NSJOM_1999_29_2a_9,
     author = {D. 

 Dimovski and G. Cupona},
     title = {Injective vector valued semigroups},
     journal = {Novi Sad Journal of Mathematics},
     pages = {149-161},
     year = {1999},
     volume = {29},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1999_29_2a_9/}
}