@book
{TN_libero_mab2,
author = {
Pierce, John Robinson
},
title = {
Traveling-wave tubes
},
publisher = {Van Nostrand},
year = {1950},
booktitle = {The Bell Telephone Laboratories series},
address = {
Princeton, N.J. [u.a.]
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}