@article{sun_discovering_2017,
	title = {Discovering themes and trends in transportation research using topic modeling},
	volume = {77},
	issn = {0968090X},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S0968090X17300207},
	doi = {10.1016/j.trc.2017.01.013},
	language = {en},
	urldate = {2017-12-06},
	journal = {Transportation Research Part C: Emerging Technologies},
	author = {Sun, Lijun and Yin, Yafeng},
	month = apr,
	year = {2017},
	pages = {49--66}
}

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