@article{PPN234729163+dmdlog185, title = {\S . 159. Cubische Gleichungen}, booktitle = {Lehrbuch der Algebra Bd. 1}, series = {GDML\_Books}, year = {1895}, pages = {522}, url = {http://dml.mathdoc.fr/item/PPN234729163+dmdlog185} }
(éd.). §. 159. Cubische Gleichungen, dans Lehrbuch der Algebra Bd. 1, GDML_Books, (1895), p. 522. http://gdmltest.u-ga.fr/item/PPN234729163+dmdlog185/