@article{PPN584694482+DMDLOG_0003, title = {Inhalt des dritten Theils.}, booktitle = {Trigonometrie Th. 3}, series = {GDML\_Books}, publisher = {Zwissler}, address = {Wolfenb\"uttel}, year = {1880}, pages = {VII}, url = {http://dml.mathdoc.fr/item/PPN584694482+DMDLOG_0003} }
(éd.). Inhalt des dritten Theils., dans Trigonometrie Th. 3, GDML_Books, (1880), p. VII. http://gdmltest.u-ga.fr/item/PPN584694482+DMDLOG_0003/