6You, Liangzhi; Wood, Stanley; Rosegrant, Mark W. and Fang, Cheng: Impact of Global Warming on Chinese Wheat Productivity, International Food Policy Research Institute, 2005.
8Mendelsolm, IL ; Nordhaus, W.; Shaw, D.: The Impacts of Global Warming on Agriculture: A Ricardian Analysis, American Economic Review, 84: 753-711, 1994.
9Lin, Tun; Liu, Xiaoyun; Wan, Guanghua; Xin, Xian and Zhang, Yongsheng: Impact of Climate Change on the People's Republic of China's Grain Output------Regional and Crop Perspective, ADB Economics Working Paper Series, Publication Stock No.WPS 113172, Asian Devolopment Bank, Philippines, 2011.
10USDA: Major World Crop Areas and Climatic Profiles, Agricultural Handbook No.664, World Agricultural Outlook Board, USDA, 1996.