@article{CMJ_2008_58_4_a14,
     author = {Li, Shirong and Li, Yangming},
     title = {On $S$-quasinormal and $c$-normal subgroups of a finite group},
     journal = {Czechoslovak Mathematical Journal},
     pages = {1083--1095},
     year = {2008},
     volume = {58},
     number = {4},
     mrnumber = {2471167},
     zbl = {1166.20013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2008_58_4_a14/}
}