@incollection {Heiler-et-al-05,
	title = {Semidefinite Clustering for Image Segmentation with A-priori Knowledge},
	volume = {3663},
	year = {2005},
	pages = {309{\textendash}317},
	publisher = {Springer},
	author = {Heiler, M. and Keuchel, J. and Schn{\"o}rr, C.}
}
