@article{10_1017_S0017089500030408,
     author = {Smith, Howard},
     title = {Groups with finitely many conjugacy classes of subgroups with large subnormal defect},
     journal = {Glasgow mathematical journal},
     pages = {69--71},
     year = {1995},
     volume = {37},
     number = {1},
     doi = {10.1017/S0017089500030408},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500030408/}
}