1. The Dynamic Stability of Elastic Systems;Bolotin,1956
2. English translation published by Holden-Day (1964).
3. On the parametric response of structures;Evan-Iwanowski;Appl. Mech. Rev.,1965
4. The effects of internal and external friction on the dynamic stability of bars;Kovalenko;PMM,1959
5. On the parametric excitation of a viscoelastic column;Stevens;AIAA Jnl,1966