Media type: E-Article Title: Mapping spatial variation of population aging in China's mega cities Contributor: Xie, Bo; Zhou, Jie; Luo, Xiao imprint: Informa UK Limited, 2016 Published in: Journal of Maps Language: English DOI: 10.1080/17445647.2014.1000984 ISSN: 1744-5647 Keywords: Earth and Planetary Sciences (miscellaneous) ; Geography, Planning and Development Origination: Footnote: Access State: Open Access