Regens, J. L., K. R. Obenshain, C. Travis, abd C. Whipple. "Conceptual site models and multimedia modeling: Comparing MEPAS, MMSOILS, and RESRAD." Human and Ecological Risk Assessment 8, no. 2: (2002): 391-403.

The use of multimedia models to assess current and future human and ecological exposure to contamination at hazardous waste sites has become common practice in recent years. The U.S. Environmental Protection Agency has identified development of a conceptual site model as a critical part of the risk assessment process. This paper investigates the relationship between the choice of conceptual site models and application of multimedia models and the variation in risk estimates obtained when using data and default parameter values suggested by the individual model developers.