TY - Journal of Geographical Sciences A1 - Dezhong DUAN, Debin DU, Chengliang LIU, GRIMES Seamus T1 - Spatio-temporal evolution of urban innovation structure based on zip code geodatabase: An empirical study from Shanghai and Beijing Y1 - 2016-12-20 08:53:04.937 JF - Journal of Geographical Sciences JO - Journal of Geographical Sciences SP - 1707 EP - 1724 VL - 26 IS - 12 UR - {https://www.geogsci.com/EN/10.1007/s11442-016-1354-4} N1 - 10.1007/s11442-016-1354-4 ER -