@article{10_1017_S0017089500032572,
     author = {Smith, Howard and Wiegold, James},
     title = {Groups isomorphic to their non-nilpotent subgroups},
     journal = {Glasgow mathematical journal},
     pages = {257--262},
     year = {1998},
     volume = {40},
     number = {2},
     doi = {10.1017/S0017089500032572},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500032572/}
}