@book{Bretholz2018,
author = {Bretholz, Berthold},
year = {2018},
language = {ger},
copyright = {https://creativecommons.org/public-domain/cc0/},
title = {Zweiter Band. Hussitentum und Adelsherrschaft bis 1620},
url = "http://dx.doi.org/10.17169/refubium-579",
}