@article{1256067881, author = {Mann, H. B.}, title = {Difference sets in elementary abelian groups}, journal = {Illinois J. Math.}, volume = {9}, number = {4}, year = {1965}, pages = { 212-219}, language = {en}, url = {http://dml.mathdoc.fr/item/1256067881} }
Mann, H. B. Difference sets in elementary abelian groups. Illinois J. Math., Tome 9 (1965) no. 4, pp. 212-219. http://gdmltest.u-ga.fr/item/1256067881/