@inbook{401324,
title = {P\v redmluva},
booktitle = {Z\'aklady teorie matic},
series = {GDML\_Books},
publisher = {Academia},
address = {Praha},
year = {1971},
pages = {5-5},
url = {http://dml.mathdoc.fr/item/401324}
}
(éd.). Předmluva, dans Základy teorie matic, GDML_Books, (1971), p. 5. http://gdmltest.u-ga.fr/item/401324/