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% This file was created with JabRef 2.7.1.
% Encoding: UTF8
@MISC{Berberich2013,
author = {Hubert Berberich},
title = {Cipher disc for substitution cipher, manufacturer: Linge, Pleidelsheim
(Germany)},
howpublished = {Wikimedia},
year = {2013},
note = {License: Public Domain, Accessed: 2020-05-02},
owner = {ple},
timestamp = {2020.05.02},
url = {https://en.wikipedia.org/wiki/File:CipherDisk2000.jpg}
}
@INPROCEEDINGS{friis1946,
author = {Harald Trap Friis},
title = {A Note on a Simple Transmission Formula},
booktitle = {IRE Proc.},
year = {1946},
pages = {254 -- 256},
month = {May},
owner = {ple},
timestamp = {2019.04.17}
}
@MISC{WikiSemaphore,
author = {Unknown},
title = {Chappe's semaphore},
howpublished = {Wikimedia},
year = {19th century},
note = {License: Public Domain, Accessed: 2020-05-02},
owner = {ple},
timestamp = {2020.05.02},
url = {https://en.wikipedia.org/wiki/File:Chappe_semaphore.jpg}
}
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