

@article {12633,
	title = {Exploring variation of antibiotic resistance genes in activated sludge over a four-year period through a metagenomic approach},
	journal = {Environmental science \& technologyEnvironmental Science \& Technology},
	volume = {47},
	number = {18},
	year = {2013},
	pages = {10197-10205},
	isbn = {0013-936X},
	author = {Yang, Ying and Li, Bing and Ju, Feng and Zhang, Tong}
}
