@inbook{Bruderer_2013,
title={Discovery of Two Historical Computers in Switzerland: Zuse Machine M9 and Contraves Cora and Discovery of Unknown Documents on the Early History of Computing at the ETH Archives},
ISBN={9783642416507},
ISSN={1868-422X},
url={http://dx.doi.org/10.1007/978-3-642-41650-7_9},
DOI={10.1007/978-3-642-41650-7_9},
booktitle={Making the History of Computing Relevant},
publisher={Springer Berlin Heidelberg},
author={Bruderer,
Herbert},
year={2013},
pages={96–104} }