Dear DSSAT developers and users: I am looking for the following two references: (1) Richie, J. T., U. Singh, D.C. Godwin and L. Hunt. 1989. A User's Guide to CERES Maize - V2.10 International Fertilizer Development Center, Muscle Shoals, AL (2) Jones, J.W., K.J. Boote, G. Hoogenboom, S.S. Jagtap and G.G. Wilkenson. 1989. SOYGRO V5.42: Soybean crop growth simulation model. User's Guide. Florida Agricultural Experiment Station Journal No. 8304; University of Florida; Gainesville, FL. for further understanding the DSSAT models. If you know where I can buy a copy of the references, or you have additional copy of the references and would like to give it to someone like me for use, please email me the information. I greatly appreciate your help. Thank you in advance. Haiping Su, Ph.D. Argonne National Laboratory Tel: 630-252-4091 Fax: 630-252-6413 Email: [log in to unmask]