@inbook{400235,
     title = {[Tir\'a\v z]},
     booktitle = {Bernard Bolzano's Schriften},
     series = {GDML\_Books},
     publisher = {Kr\'alovsk\'a \v cesk\'a spole\v cnost nauk v Praze},
     address = {Praha},
     year = {1948},
     pages = {[208]-[208]},
     language = {cs},
     url = {http://dml.mathdoc.fr/item/400235}
}