@article{10_1017_S0017089500032560,
     author = {H\"ofling, Burkhard},
     title = {Periodic radical products of two locally nilpotent subgroups{\textdagger}},
     journal = {Glasgow mathematical journal},
     pages = {241--255},
     year = {1998},
     volume = {40},
     number = {2},
     doi = {10.1017/S0017089500032560},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500032560/}
}