1.		Do perceptions of time affect outbound-travel motivations and intentation? An investigation among Chinese seniors / Jiaying Lu [et al.] Resp- Sec.: Jiaying, Lu Kam, Hung Wang, Lili Schuett, Michael A. Liang, Hu
2.		Understanding travel constraints among the elderly in Hong Kong: A comparative study of the elderly living in private and in public housing / Kam Hung, Xue Bai and Jiaying Lu Autor: Kam, Hung Coautor: ; Xue, Bai Jiaying, Lu