点击链接可以下载
http://www.tandfonline.com/doi/abs/10.1080/01490409209513153
http://www.tandfonline.com/doi/abs/10.1080/02614360600896668?journalCode=rlst20

http://jtr.sagepub.com/content/44/2/221.short

http://www.sciencedirect.com/science/article/pii/S0261517708000344

设置附件，每篇100币，谢谢。