@article {16391,
	title = {Extraction of rare earth elements from a contaminated cropland soil using nitric acid, citric acid, and EDTA},
	journal = {Environmental Technology},
	volume = {38},
	year = {2017},
	pages = {1980{\textendash}1986},
	author = {Hailong Tang and Weitao Shuai and Xiaojing Wang and Yangsheng* Liu}
}
