Dave Higdon Marc C. Kennedy James C. Cavendish John A. Cafeo Robert D. Ryne Combining Field Data and Computer Simulations for Calibration and Prediction. 448-466 2004 26 SIAM J. Sci. Comput. 2 https://doi.org/10.1137/S1064827503426693 db/journals/siamsc/siamsc26.html#HigdonKCCR04