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@article{UBHD-67985585, author={Sun, Yeran and Fan, Hongchao and Li, Ming and Zipf, Alexander}, title={Identifying the city center using human travel flows generated from location-based social networking data}, year={2016}, pages={480-498}, language={eng}, issn={1472-3417}, volume={43}, number={3}, note={Article first published online: November 30, 2015 ; Gesehen am 02.06.2020}, journal={Environment and planning}, doi={10.1177/0265813515617642}, }