篇号：1
题 名：Economies of scale and market structure in international grain trade
作者：MargheritaScoppola
期刊全称或缩写：AgriculturalEconomics
年份，卷（期），起止页码： Volume 37,Issue 2, Date: September/November 2007, Pages: 277-291
电子链接：http://www3.interscience.wiley.com/search/allsearch?mode=quicksearch&WISindexid1=WISall&WISsearch1=Economies+of+scale+and+market+structure+in+international+grain+trade

篇号：2
题 名：Regional trade agreements and trade in agri-food products: evidencefor the European Union from gravity modeling using disaggregated data
作者：RakhalSarker, Sampath Jayasinghe
期刊全称或缩写：AgriculturalEconomics
年份，卷（期），起止页码： Volume 37,Issue 1, Date: July 2007, Pages: 93-104

电子链接：http://www3.interscience.wiley.com/search/allsearch?mode=quicksearch&WISindexid1=WISall&WISsearch1=Regional+trade+agreements+and+trade+in+agri-food+products%3A+evidence+for+the+European+Union+from+gravity+modeling+using+disaggregated+data

谢谢了。