@misc{momi-kivic,
  author = {Antero Kivi},
  title = {Mobile Handset Population in Finland 2005-2008},
  year = {2009},
  type = {MoMI project report},
  url = {http://www.netlab.tkk.fi/~jakivi/publications/Kivi_Mobile_Handset_Population_2005-2008.pdf},
}