The Development of a Conditional Probability Computer for Control Applications. - H. C. Ratz; G. H. M. Thomas (IFIP Congress, 1962)

The Automatic Design of Fractional Factorial Experiments for Adaptive Process Optimization - C. Denis Hall; H. C. Ratz (Inf. Control., 1967)

A Mean Square Estimate of the Generated Roundoff Error in Constant Matrix Iterative Processes. - Nico F. Benschop; H. C. Ratz (J. ACM, 1971)

Observations on the Duration of Ph.D. Programs. - H. C. Ratz (IEEE Trans. Syst. Man Cybern., 1975)

Matrix Transformations for N-Tuple Analysis of Binary Patterns. - H. C. Ratz (IEEE Trans. Computers, 1976)

Economic comparisons of data communication services. - H. C. Ratz; J. A. Field (Comput. Networks, 1980)

Performance Factors in Videotex Systems. - J. A. Field; H. C. Ratz; Mike Sablatash (INFOCOM, 1984)

Extreme value engineering for local network traffic. - H. C. Ratz (IEEE Trans. Commun., 1988)

Extreme values from skewed distributions [mathematics education]. - H. C. Ratz (IEEE Trans. Educ., 2000)