@article{PPN615467385+DMDLOG_0002, title = {Vorrede.}, booktitle = {Differential-Rechnung Theil 1}, series = {GDML\_Books}, publisher = {Helwing}, address = {Hannover}, year = {1888}, pages = {III}, url = {http://dml.mathdoc.fr/item/PPN615467385+DMDLOG_0002} }
(éd.). Vorrede., dans Differential-Rechnung Theil 1, GDML_Books, (1888), p. III. http://gdmltest.u-ga.fr/item/PPN615467385+DMDLOG_0002/