@book{PPN589855395, title = {Allgemeines betreffend Rechnungsmethoden Bd. 1}, series = {GDML\_Books}, publisher = {D\"ummler}, address = {Berlin}, year = {1888}, language = {de}, url = {http://dml.mathdoc.fr/item/PPN589855395} }
Encke, Johann Franz. Allgemeines betreffend Rechnungsmethoden Bd. 1. GDML_Books (1888), http://gdmltest.u-ga.fr/item/PPN589855395/