4A L Pieternel, J M Willem. A Conceptual Model of Food Quality Management Functions Based on a Techno - managerial Approach [J] . Trends in Food Science & Technolo- gy, 2007, 18:159 - 166.
5R K Yin. Case Study Re- search: Design and Methods[M]. Thousand Oaks: Sage, 2004.
6K M Eisenhardt. Building -Theories from Case Study Research. Academy of Management Review [J].1989, 14(4): 532-550.
7Yin R K. Case Study Research [M]. Second ed. Thousand Oaks, CA: Sage, 1994.
8金征字,彭池方.食品安全[M].杭州:浙江大学出版社,2008:230-272.
9Caroline smith EeWaal. Safe food from a consumer perspective[J]. Food control,2003,2( 14)76-80.
10Jill E.Hobbs.Information asymmetry and the role of traceability systems[J]. Agribusiness . 2004 (4)