@article{Dezhong DUAN_1707, author = {Dezhong DUAN, Debin DU, Chengliang LIU, GRIMES Seamus}, title = {Spatio-temporal evolution of urban innovation structure based on zip code geodatabase: An empirical study from Shanghai and Beijing}, publisher = {Journal of Geographical Sciences}, year = {2016}, journal = {Journal of Geographical Sciences}, volume = {26}, number = {12}, eid = {1707}, pages = {1707-1724}, keywords = {innovation outputs;zip code;spatio-temporal evolution;agglomeration and dispersion}, doi = https://www.geogsci.com/EN/10.1007/s11442-016-1354-4 }