Hoffer, E. P., Feldman, M. J., Kim, R. J., Famiglietti, K. T., & Barnett, G. O. (2005). DXplain: Patterns of Use of a Mature Expert System. American Medical Informatics Association.

Hoffer, Edward P., Mitchell J. Feldman, Richard J. Kim, Kathleen T. Famiglietti, and G Octo Barnett. DXplain: Patterns of Use of a Mature Expert System. American Medical Informatics Association, 2005.

Hoffer, Edward P., et al. DXplain: Patterns of Use of a Mature Expert System. American Medical Informatics Association, 2005.