@incollection{401233, title = {P\v redmluva}, booktitle = {Mathematics throughout the ages}, series = {GDML\_Books}, publisher = {Prometheus}, address = {Praha}, year = {2001}, pages = {5-5}, url = {http://dml.mathdoc.fr/item/401233} }
(éd.). Předmluva, dans Mathematics throughout the ages, GDML_Books, (2001), p. 5. http://gdmltest.u-ga.fr/item/401233/