1. V. V. Bolotin, Dynamic Stability of Elastic Systems [in Russian], Gostekhizdat, Moscow (1956).
2. V. V. Bolotin, Nonconservative Problems in the Theory of Elastic Stability [in Russian], Fizmatgiz, Moscow (1961).
3. V. A. Dzhupanov and Sv. V. Lilkova-Markova, “Dynamic stability of a fluid-conveying cantilevered pipe on an additional combined support,” Int. Appl. Mech., 39, No. 2, 185–191 (2003).
4. L. G. Lobas and L. L. Lobas, “Bifurcations, stability, and chaos of the equilibrium states of a double pendulum with an asymmetric follower force,” Izv. RAN, Mekh. Tverd. Tela, No. 4, 139–149 (2004).
5. H. Ziegler, “On the concepts of elastic stability,” in: Advances in Applied Mechanics, Vol. 4, Acad. Press, New York (1956), pp. 351–403.