@article{SMJ2_2001_27_2_a4,
     author = {de Falco, M. and de Giovanni, F.},
     title = {Groups with {Decomposable} {Set} of {Quasinormal} {Subgroups}},
     journal = {Serdica Mathematical Journal},
     pages = {137--142},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2001_27_2_a4/}
}