@book{UBHD-1712019, author={Ludwig, Johann Friedrich Hermann}, title={De Siliciae aequivalento et formula chemica commentatio}, publisher={Schreiber}, address={Ienae}, year={1852}, pages={85 S., [1] Bl.}, language={lat}, school={Jena, Univ., Habil.-Schr., 1852}, library={UB [Signatur: 39,1060]}, }