@article{MABA_2007_21_3-4_a14,
     author = {M. R. Darafsheh and H. Sharifi},
     title = {Involutions in {Q-Groups}},
     journal = {Mathematica balkanica},
     pages = {399},
     publisher = {mathdoc},
     volume = {21},
     number = {3-4},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/MABA_2007_21_3-4_a14/}
}