@article {zhu2014energy,
	title = {Energy recovery from solutions with different salinities based on swelling and shrinking of hydrogels},
	journal = {Environmental science \&amp; technology},
	volume = {48},
	number = {12},
	year = {2014},
	pages = {7157{\textendash}7163},
	publisher = {American Chemical Society},
	author = {Zhu, Xiuping and Yang, Wulin and Hatzell, Marta C and Logan, Bruce E.}
}
