@InProceedings{hyvonen-tieteen-paivat-2007,
  author =   {Eero Hyvönen and Katri Seppälä and Kim Viljanen and Matias Frosterus},
  title =    {Yleinen suomalainen ontologia YSO --- kohti suomalaista semanttista webiä
  (General Finnish Ontology YSO---Towards the Finnish Semantic Web)},
  booktitle = {Tietolinja},
  year =     {2007},
  month =    {May},
  publisher =    {},
  OPTURL =       {http://www.seco.hut.fi/publications/2007/hyvonen-et-al-yso-2007.pdf},
  OPTproject =   {http://www.seco.hut.fi/projects/finnonto, http://www.seco.hut.fi/ontologies/yso},
  OPTannote = {semantic web, knowledge management, Finland},
  note = {}
}