Remark on "Algorithm 506: HQR3 and EXCHNG: Fortran Subroutines for Calculating and Ordering the Eigenvalues of a Real Upper Hessenberg Matrix". - David S. Flamm; Robert A. Walker (ACM Trans. Math. Softw., 1982)

Control of delay systems for minimax sensitivity. - David S. Flamm (1986)

Single-loop stability margins for multirate and periodic control systems. - David S. Flamm (IEEE Trans. Autom. Control., 1993)

Optimal mixed sensitivity for SISO-distributed plants. - David S. Flamm; Hong Yang (IEEE Trans. Autom. Control., 1994)