@article{RLIN_2004_9_15_2_a0,
     author = {Stonehewer, Stewart E. and Zacher, Giovanni},
     title = {Abelian quasinormal subgroups of groups},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {69--79},
     publisher = {mathdoc},
     volume = {Ser. 9, 15},
     number = {2},
     year = {2004},
     zbl = {1154.20306},
     mrnumber = {144979},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_2004_9_15_2_a0/}
}