@article{10_1017_S0017089500003578,
     author = {Guralnick, Robert M.},
     title = {On groups with decomposable commutator subgroups},
     journal = {Glasgow mathematical journal},
     pages = {159--162},
     year = {1978},
     volume = {19},
     number = {2},
     doi = {10.1017/S0017089500003578},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003578/}
}