@INPROCEEDINGS{VarLenKam:2006,
  author = {J. Vartiainen and L. Lensu and J.-K. Kamarainen and A. Sadovnikov
	and H. K{\"a}lvi{\"a}inen},
  title = {Detecting irregularities in regular patterns},
  booktitle = {18th Int. Conf. on Pattern Recognition (ICPR2006)},
  year = {2006},
  address = {Hong Kong}
}