@article{CMH_1938__11_138727,
     author = {Conrad Leser},
     title = {Invariantentheorie algebraischer {Formen.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {273--292},
     year = {1938},
     volume = {11},
     zbl = {0021.19801},
     url = {http://geodesic.mathdoc.fr/item/CMH_1938__11_138727/}
}