@inproceedings{mci/Steffen2003,
author = {Steffen, Andreas},
title = {Virtual private networks coping with complexity},
booktitle = {Security, E-learning, E-Services, 17. DFN-Arbeitstagung über Kommunikationsnetze},
year = {2003},
editor = {Knop, Jan Von AND Haverkamp, Wilhelm AND Jessen, Eike} ,
pages = { 289-302 },
publisher = {Gesellschaft für Informatik e.V.},
address = {Bonn}
}