@article {KimFraSch05,
	title = {Iterative kernel principal component analysis for image modeling},
	journal = {IEEE Trans. PAMI},
	volume = {27},
	number = {9},
	year = {2005},
	pages = {1351~{\textendash}~1366},
	author = {K I Kim and M O Franz and B Sch{\"o}lkopf}
}
