1. H. Ziegler, “Die Stabilittskriterien Der Elastomechanik,” Ingenieur-Archiv 20(1) (1952).
2. G. Herrmann and I. C. Jong, “On the Destabilizing Effect of Damping in Nonconservative Elastic Systems,” Trans. ASME, J. Appl. Mech. 32(3), (1965).
3. P. Hagedorn, “On the Destabilisation Effect of Nonlinear Damping in Nonconservative Systems with Follower Forces,” Int. J. Nonlinear Mech. 5(2), 197.
4. S. A. Agafonov, “On Stability and Self-oscillations of a Double Pendulum with Elastic Elements under the Action of a Following Force,” Izv. Ross. Akad. Nauk: Mekh. Tverd. Tela, No. 5 (1992).
5. S. V. Litvinov, “Stability under the Action of a Following Force of Certain Rotating Model Systems,” Vestn. Mosk. Univ., Ser. 1., No. 1 (2002).