@inproceedings{ICPR-v2-2006-LettnerS,
	author        = "Martin Lettner and Robert Sablatnig",
	booktitle     = "{Proceedings of the 18th International Conference on Pattern Recognition, Volume 2}",
	doi           = "10.1109/ICPR.2006.1109",
	isbn          = "0-7695-2521-0",
	pages         = "308--311",
	publisher     = "{IEEE Computer Society}",
	title         = "{Texture and Profile Features for Drawing Media Recognition in Underdrawings}",
	year          = 2006,
}