K. Chen, D. Boning and R. Welsch (2002) Multivariate Statistical Process Control and Signature Analysis Using Eigenfactor Detection Methods. Proceedings of the 33rd Symposium on the Interface: Computing Science and Statistics, 33, 271-291.

V. Sharma and R. Welsch (1997) Research on Variation Reduction Using Massive Data Streams. Bulletin of the International Statistical Institute, Istanbul, 51, 289-290.

L. Wein, M. Longtin and R. Welsch (1996) Sequential Screening in Semiconductor Manufacturing, II: Exploiting Spatial Dependence, Operations Research, 44, 173-195.

D. Gay and R. Welsch (1988) Maximum Likelihood and Quasi-Likelihood for Nonlinear Exponential Family Regression Models. Journal of the American Statistical Association, 83, pp. 990-998. (with D. Bunch and D. Gay) Subroutines for Maximum Likelihood and Quasi-Likelihood Estimation of Parameters in Nonlinear Regression Models. Transactions on Mathematical Software, 19, pp.109-130.

W. Kraske and R. Welsch (1988) Resistant Estimation for Simultaneous-Equations Models Using Weighted Instrument Variables, Econometrica, 53, pp. 1475-1488.

W. Krasker and R. Welsch (1988) Efficient Bounded-Influence Regression Estimation, Journal of the American Statistical Association, 77, pp. 596-604.

J. Dennis and D. Gay and R. Welsch (1988) An Adaptive Nonlinear Least-Squares Algorithm. Transactions on Mathematical Software, 7, pp. 348-383.

D. Belsley and E. Kuh and R. Welsch (1988) Regression Diagnostics: Identifying Influential Data and Sources of Collinearity, John Wiley and Sons, Inc., New York.

D. Hoaglin and R. Welsch (1988) The Hat Matrix in Regression and ANOVA, The American Statistician, 32, pp. 17-22 and Corrigenda, 32, p. 146.