@inbook{400084,
title = {Preface},
booktitle = {Bolzano and the Foundations of Mathematical Analysis},
series = {GDML\_Books},
publisher = {Society of Czechoslovak Mathematicians and Physicists},
address = {Praha},
year = {1981},
pages = {9-[10]},
url = {http://dml.mathdoc.fr/item/400084}
}
Novák, Josef. Preface, dans Bolzano and the Foundations of Mathematical Analysis, GDML_Books, (1981), pp. 9-[10]. http://gdmltest.u-ga.fr/item/400084/