"Computational Procedures for Bounded-Influence Regression."

Roy E. Welsch and A. Samarov. In COMPSTAT 1982: Proceedings in Computational Statistics, edited by H. Caussinus, P. Ettinger, and R. Tomassone. Heidelberg, Germany: January 1982.

"Discussion of 'Regression Diagnostics, Transformations, and Constructed Variables,' by A. C. Atkinson."

Welsch, Roy E. J. R. Statist. Soc. B Vol. 44, (1982): 1-36.

"Efficient Computing of Regression Diagnostics."

Velleman, Paul and Roy E. Welsch. The American Statistician Vol. 35, No. 4 (1981): 234-242.

"An Adaptive Nonlinear Least-Squares Algorithm."

Welsch, Roy with John Dennis and David Gay. Transactions on Mathematical Software Vol. 7, No. 3 (1981): 348-383.

"NLS: Nonlinear Least-Squares Regression."

Welsch, Roy E. TROLL Documentation Series, M.I.T. Information Processing Center. 1981.

"Regression Sensitivity Analysis and Bounded-Influence Estimation."

Welsch, Roy E. In Evaluation of Econometric Models, edited by James Ramsey and Jan Kmenta, 153-167. New York, NY: Academic Press, 1980.