哪位好心人，帮我下载三篇文献。在线等。

非常感谢。好人一生平安幸福！

[1]     Bai Y. andZhang, Z. Aggregate Cigarette Demand and Regional Differences in China. AppliedEconomics, 2005, 37, pp. 2523- 2528.

[2]     Hu, T. W. andMao, Z. Effects of Cigarette Tax on Cigarette Consumption and the Chinese Economy.  Tobacco Control, 2002, 11( 2) , pp. 105- 108.

[3]     Lance, P. M. ;  Ak in, J. S. ; Dow, W. H. and Loh , C. Is CigaretteSmoking in Poorer N at ion s Highly Sensitive to Price? Evidence from Russiaand China. Journal of Health Economics, 2004, 23( 1) , pp. 173- 189.