@article{1077465740, author = {Higman, D. G.}, title = {Modules with a group of operators}, journal = {Duke Math. J.}, volume = {21}, number = {1}, year = {1954}, pages = { 369-376}, language = {en}, url = {http://dml.mathdoc.fr/item/1077465740} }
Higman, D. G. Modules with a group of operators. Duke Math. J., Tome 21 (1954) no. 1, pp. 369-376. http://gdmltest.u-ga.fr/item/1077465740/