@article{MS2_1988__62_2_167037,
     author = {Charles J.K. Batty and Derek W. Robinson},
     title = {Commutators and generators.},
     journal = {Mathematica Scandinavica},
     pages = {303--326},
     year = {1988},
     volume = {62},
     number = {2},
     zbl = {0643.47045},
     url = {http://geodesic.mathdoc.fr/item/MS2_1988__62_2_167037/}
}