@TECHREPORT{Müller-WilkenRamme1998,
  author      = {Stefan Müller-Wilken and F. Ramme},
  title       = {Advanced Service Provisioning in Future Telecommunication Networks - a first pre-study -},
  institution = {Uni Hamburg},
  year        = {1998},
  address     = {Internal Report, Ericsson EED/MA}
}