Vorwort
Winter, Eduard
Bernard Bolzano's Schriften, GDML_Books, (1935), p. V-VI / Harvested from
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@inbook{400203,
     title = {Vorwort},
     booktitle = {Bernard Bolzano's Schriften},
     series = {GDML\_Books},
     publisher = {Kr\'alovsk\'a \v cesk\'a spole\v cnost nauk},
     address = {Praha},
     year = {1935},
     pages = {V-VI},
     url = {http://dml.mathdoc.fr/item/400203}
}

Winter, Eduard. Vorwort, dans Bernard Bolzano's Schriften, GDML_Books,  (1935), pp. V-VI. http://gdmltest.u-ga.fr/item/400203/