1. Stabilität und Matrizen;Müller,1977
2. A Stability Theorem for a Dynamically Loaded Linear Viscoelastic Structure;Nicholson,1978
3. A Note on Vibrations of Damped Linear Systems;Nicholson;Mech. Res. Comm.,1978
4. On the Forced Vibration of a Damped Linear System;Nicholson;Mech. Res. Comm.,1978
5. Nicholson, D. W., “Eigenvalue Bounds for Damped Linear Systems,” to appear in Mech. Res. Comm.