1 Title：Agriculture, innovational ability, and dynamic comparative advantage of LDCs
URL：http://www.informaworld.com/smpp/content~content=a713776693&db=all

Authors: Mukesh Eswaran ;Ashok Kotwal

Journal：The Journal of International Trade & Economic Development,
Volume 10, Issue 3 September 2001 , pages 275 - 289

2
Title：What does export diversification do for growth? An econometric analysis

URL: http://www.informaworld.com/10.1080/00036840500426983

Authors: Herzer, Dierk; Felicitas, Nowak-Lehnmann D.

Journal：Applied Economics, Volume 38, Issue 15 August 2006 , pages 1825 - 1838

谢谢各位帮助和关注！