@PROCEEDINGS{scia:2013,
  title = {18th Scandinavian Conf. on Image Analysis},
  year = {2013},
  editor = {J.-K. K{\"a}m{\"a}r{\"a}inen and M. Koskela},
  address = {Espoo, Finland},
  publisher = {Springer},
  booktitle = {18th Scandinavian Conf. on Image Analysis},
  url = {http://www.springer.com/978-3-642-38885-9}
}