@article{GDZPPN002052792, title = {Invariantentheorie algebraischer Formen.}, journal = {Commentarii mathematici Helvetici}, volume = {11}, year = {1938}, pages = {273-292}, zbl = {0021.19801}, url = {http://dml.mathdoc.fr/item/GDZPPN002052792} }
Leser, Conrad. Invariantentheorie algebraischer Formen.. Commentarii mathematici Helvetici, Tome 11 (1938) pp. 273-292. http://gdmltest.u-ga.fr/item/GDZPPN002052792/