@article{PPN595769217+DMDLOG_0004, title = {V. Von Kepler bis Newton.}, booktitle = {Die empirischen Methoden Theil 2}, series = {GDML\_Books}, publisher = {Teubner}, address = {Leipzig}, year = {1894}, pages = {218}, url = {http://dml.mathdoc.fr/item/PPN595769217+DMDLOG_0004} }
(éd.). V. Von Kepler bis Newton., dans Die empirischen Methoden Theil 2, GDML_Books, (1894), p. 218. http://gdmltest.u-ga.fr/item/PPN595769217+DMDLOG_0004/