@article{10_4153_CJM_1985_001_8,
     author = {Smith, Howard},
     title = {Groups with the {Subnormal} {Join} {Property}},
     journal = {Canadian journal of mathematics},
     pages = {1--16},
     year = {1985},
     volume = {37},
     number = {1},
     doi = {10.4153/CJM-1985-001-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1985-001-8/}
}