@article{10_1017_S0017089500008715,
     author = {Franciosi, Silvana and Giovanni, Francesco de},
     title = {On the {Hirsch-Plotkin} radical of a factorized group},
     journal = {Glasgow mathematical journal},
     pages = {193--199},
     year = {1992},
     volume = {34},
     number = {2},
     doi = {10.1017/S0017089500008715},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008715/}
}