@article{MABA_1991_5_2_a8,
     author = {Natasha Bozovic},
     title = {On {Some} {Properties} of {Universal} {Groups}},
     journal = {Mathematica balkanica},
     pages = {156},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1991},
     url = {http://geodesic.mathdoc.fr/item/MABA_1991_5_2_a8/}
}