@book{PPN62264663X,
title = {Leitfaden der Elementar-Mathematik Teil 2},
series = {GDML\_Books},
publisher = {Schmidt},
address = {Helmstedt},
year = {1883},
language = {de},
url = {http://dml.mathdoc.fr/item/PPN62264663X}
}
Dauber, Adolf. Leitfaden der Elementar-Mathematik Teil 2. GDML_Books (1883), http://gdmltest.u-ga.fr/item/PPN62264663X/