1.		Dynamic heterogeneous panel data analysis of tourism demand for Singapore / Christine Lim and Liang Zhu Autor: Lim, Christine Coautor: ; Liang, Zhu COTA(S): RE-1562
2.		Causality in direct air services and tourism demand / Tay T. R. Koo, Christine Lim and Frédéric Dobruszkes Autor: Koo, Tay T. R. Coautor: ; Lim, Christine Dobruszkes, Frédéric COTA(S): RE-1253