@misc{intero-nicklaslicthesis,
  author = {Nicklas Beijar},
  year = {2004},
  month = {April},
  title = {Telephony Routing with Support for Number Portability in Interconnected Circuit and Packet Switched Networks},
  howpublished = {{\em Licentiate thesis}, Helsinki University of Technology},
  school = {Helsinki University of Technology},
  type = {Licentiate thesis},
  url = {http://www.netlab.hut.fi/u/nbeijar/docs/beijar_lic.pdf},
  country = {Finland},
  sarja = {ISBN 951-22-7118-4, ISSN 1458-0322},
}