@book{ 0-1179996178, title = {Lehrbuch der ... Chemie}, author = {Fechner, Gustav Theodor and Thenard, ...}, editor = {Thenard, ...}, address = {Leipzig}, publisher = {}, year = {1825}, language = {German}, url = {https://katalog.hgb-leipzig.de/Record/0-1179996178} }