"Confidence Regions for Robust Regression."

Roy E. Welsch. In 1975 Proceedings of the ASA Statistical Computing Section, Alexandria, VA: December 1976.

"Graphics for Data Analysis."

Welsch, Roy E. Computers and Graphics Vol. 2, No. 1 (1976): 31-37.

"Some Evaluation Criteria for Interactive Statistical Program Packages."

Weslch, Roy E. and P. Velleman. Communications in Statistics Vol. B5, No. 4 (1976): 197-205.

"MIT-SNAP: An Interactive Data Analysis System."

Roy E. Welsch, David Hoaglin and Steve Peters. In Proceedings of the Ninth Interface Symposium on Computer Science and Statistics, edited by David C. Hoaglin and Roy E. Welsch. Boston, MA: April 1976.

Proceedings of the Ninth Interface Symposium on Computer Science and Statistics.

Hoaglin, David C., and Roy E. Welsch (Eds.). Boston, MA: Prindle, Weber and Schmidt, 1976.

"The Variances of Regression Coefficient Estimates Using Aggregate Data."

Welsch, Roy E. and Edwin Kuh. Econometrica Vol. 44, No. 2 (1976): 353-363.