@misc
{TN_libero_mab2,
author = {
Holzmann, Gerhard J.
AND
Pehrson, Björn
},
title = {
Optische Telegraphen und die ersten Informationsnetze
},
publisher = {},
isbn = {0170-2971},
keywords = {
Telegrafie
},
year = {1994},
abstract = {Um 1800},
address = {
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}