@inbook{400138, title = {Erster Abschnit. Stetige und Unstetige Functionen}, booktitle = {Bernard Bolzano's Schriften}, series = {GDML\_Books}, publisher = {Kr\'alovsk\'a \v cesk\'a spole\v cnost nauk v Praze}, address = {Praha}, year = {1930}, pages = {13-79}, url = {http://dml.mathdoc.fr/item/400138} }
(éd.). Erster Abschnit. Stetige und Unstetige Functionen, dans Bernard Bolzano's Schriften, GDML_Books, (1930), pp. 13-79. http://gdmltest.u-ga.fr/item/400138/