@article { HSF*:2006,
	title = {Visualization of Barrier Tree Sequences},
	journal = {IEEE Transactions on Visualization and Computer Graphics},
	volume = {12},
	number = {5},
	year = {2006},
	pages = {781-788},
	author = {Heine, C. and Gerik Scheuermann and Flamm, C. and Ivo L. Hofacker and Stadler, PeterF.}
}
