@misc{9452,
  author = {K. Holgeid and John Krogstie and Dag Sj{\o}berg},
  title = {A Longitudinal Study of Software Maintenance in Norway},
  year = {1999},
  journal = {International Conference on Software Maintenance (ICSM{\textquoteright}99)},
  month = {09/1999},
  address = {Oxford, England},
  note = {Poster session},
}