1．An application of cointegration theory in the estimation of the almost ideal demand system for food consumption in Bulgaria，KG Balcombe, JR Davis - Agricultural Economics, 1996

2．A Microeconometric Analysis of the US Meat Demand XM Gao, T Spreen - Canadian Journal of Agricultural Economics, 1994

3．Maximum likelihood estimation of a complete system of demand equations，A. P. Barten,European Economic Review,1969

4．Modeling Taste Change in Meat Demand: An Application of the MIMIC Model，XM Gao, JS Shonkwiler - SAEA Meetings, Februrary, 1991

5．Dynamic Taste Change in Meat Demand: An Application of the DYMIMIC Model，XM Gao - AAEA Meetings, July, 1992