@book{400347, title = {Bernard Bolzano}, series = {GDML\_Books}, publisher = {Pra\v zsk\'a odbo\v cka D\v elnick\'e akademie v Praze II., Hybernsk\'a ul. 7}, address = {Praha}, year = {1937}, language = {cs}, url = {http://dml.mathdoc.fr/item/400347} }
Vozka, Jaroslav. Bernard Bolzano. GDML_Books (1937), http://gdmltest.u-ga.fr/item/400347/