@conference {zhang2020users,
	title = {Users{\textquoteright} Knowledge Use and Change during Information Searching Process: A Perspective of Vocabulary Usage},
	booktitle = {Proceedings of the ACM/IEEE joint conference on digital libraries in 2020},
	year = {2020},
	pages = {47{\textendash}56},
	author = {Yao Zhang and Chang Liu}
}
