@inproceedings{9,
  author = {Hannele Lehtonen and Kari Uotila and Isto Vatanen},
  title = {3D Stratigraphy - Practise in Fields and Academically Teaching},
  year = {2005},
  journal = {Det sj\"atte nordiska stratigrafim\"otet i Trondheim, 21-23 okt 2005},
  language = {eng},
}