@book{400343, title = {Bolzano and the Foundations of Mathematical Analysis}, series = {GDML\_Books}, publisher = {Society of Czechoslovak Mathematicians and Physicists}, address = {Praha}, year = {1981}, language = {en}, url = {http://dml.mathdoc.fr/item/400343} }
Jarník, Vojtěch. Bolzano and the Foundations of Mathematical Analysis. GDML_Books (1981), http://gdmltest.u-ga.fr/item/400343/