@article{PPN37649882X+dmdlog87, title = {Die Systematik der Invariantentheorie.}, booktitle = {Geometrie Bd. 2}, series = {GDML\_Books}, year = {1968}, pages = {146}, url = {http://dml.mathdoc.fr/item/PPN37649882X+dmdlog87} }
(éd.). Die Systematik der Invariantentheorie., dans Geometrie Bd. 2, GDML_Books, (1968), p. 146. http://gdmltest.u-ga.fr/item/PPN37649882X+dmdlog87/