1. Beck MB, Chen J (2000) Assuring the quality of models designed for predictive tasks. In: Saltelli A, Chan K, Scott M (eds) Mathematical and statistical methods for sensitivity analysis. Wiley, New York
2. Beck MB, Ravetz JR, Mulkey LA, Barnwell TO (1997) On the problem of model validation for predictive exposure assessments. Stoch Hydrol Hydraul 11: 229–254
3. Berding V (2000) Validation of a regional distribution model for environmental risk assessment of substances. Doctoral thesis. Department of Mathematics and Computer Science, University of Osnabrück
4. Berding V, Schwartz S, Trapp S, Matthies M (2000) Validierung von Umweltexpositions-modellen und in Modellen verwendeten Parametern. Umweltbundesamt Berichte Nr. 9/00, E. Schmidt, Berlin
5. Bredehoeft JD, Konikow LF (1993) Ground-water models: validate or invalidate. Ground Water 31:178–179