@book{19036,
	author = {Li, N.},
	title = {Synthesis and characterization of rigid-rod sulfonated polyimides bearing sulfobenzoyl side groups as proton exchange membranes},
	url = {https://drive.google.com/file/d/1uz9yuumZNfRSdTczsf2pT9y02qwIWqIX/view?usp=drivesdk}
}