@article {9540,
	title = {The why and how of DNA unlinking},
	journal = {Nucleic Acids Research},
	year = {2009},
	pages = {661-671},
	doi = {10.1093/nar/gkp041},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/19240147},
	author = {Zhirong Liu and Richard W. Deibler and Hue Sun Chan and Lynn Zechiedrich}
}
