@article{PPN234729163+dmdlog120, title = {\S . 101. Der Cartesi'sche Lehrsatz}, booktitle = {Lehrbuch der Algebra Bd. 1}, series = {GDML\_Books}, year = {1895}, pages = {308}, url = {http://dml.mathdoc.fr/item/PPN234729163+dmdlog120} }
(éd.). §. 101. Der Cartesi'sche Lehrsatz, dans Lehrbuch der Algebra Bd. 1, GDML_Books, (1895), p. 308. http://gdmltest.u-ga.fr/item/PPN234729163+dmdlog120/