@inbook{400447,
title = {Bernard Bolzano a jeho v\'yznam v mathematice},
booktitle = {Bernard Bolzano a jeho v\'yznam v mathematice},
series = {GDML\_Books},
publisher = {UK Praha [?]},
address = {Praha},
year = {1926},
pages = {[1a]-[1c]},
url = {http://dml.mathdoc.fr/item/400447}
}
Petr, Karel. Bernard Bolzano a jeho význam v mathematice, dans Bernard Bolzano a jeho význam v mathematice, GDML_Books, (1926), pp. [1a]-[1c]. http://gdmltest.u-ga.fr/item/400447/