@article{1183419495, author = {Miller, G. A.}, title = {The invariant substitutions under a substitution group}, journal = {Bull. Amer. Math. Soc.}, volume = {14}, number = {3}, year = {1907}, pages = { 19-21}, language = {en}, url = {http://dml.mathdoc.fr/item/1183419495} }
Miller, G. A. The invariant substitutions under a substitution group. Bull. Amer. Math. Soc., Tome 14 (1907) no. 3, pp. 19-21. http://gdmltest.u-ga.fr/item/1183419495/