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Spatio-temporal evolution of urban innovation structure based on zip code geodatabase: An empirical study from Shanghai and Beijing
Dezhong DUAN, Debin DU, Chengliang LIU, GRIMES Seamus
Journal of Geographical Sciences . 2016, (
12
): 1707 -1724 . DOI: 10.1007/s11442-016-1354-4