@article {649,
	title = {Moment Invariants for 2D Flow Fields via Normalization in Detail},
	journal = {IEEE Transactions on Visualization and Computer Graphics (TVCG)},
	volume = {21},
	year = {2015},
	pages = {916--929},
	url = {http://www.informatik.uni-leipzig.de/~bujack/bujackTVCGSmall.pdf},
	author = {Roxana Bujack and Ingrid Hotz and Gerik Scheuermann and Eckhard Hitzer}
}
