@inbook{400523, title = {Von den Beweisen. \S 512 - \S 543}, booktitle = {Wissenschaftlehre}, series = {GDML\_Books}, publisher = {J.E. v Seidel}, address = {Sulzbach}, year = {1837}, pages = {237-315}, url = {http://dml.mathdoc.fr/item/400523} }
(éd.). Von den Beweisen. §512 - §543, dans Wissenschaftlehre, GDML_Books, (1837), pp. 237-315. http://gdmltest.u-ga.fr/item/400523/