@book{
180-011613116,
title = {Virtual private networking: a construction, operation and utilization guide},
author = {Held, Gilbert},
address = {Chichester},
publisher = {John Wiley},
year = {2004},
pages = {290},
isbn = {0470854324 (pbk.) :},
language = {English},
note = {Includes index.},
url = {http://www.loc.gov/catdir/description/wiley042/2004273037.html},
url = {http://www.loc.gov/catdir/bios/wiley047/2004273037.html},
url = {http://www.loc.gov/catdir/toc/wiley041/2004273037.html},
url = {https://katalog.fid-bbi.de/Record/180-011613116}
}