1. M. M. Vainberg and V. A. Trenogin, Theory of Branching of Solutions of Nonlinear Equations [in Russian], Nauka, Moscow (1969).
2. B. Hessard, N. Kasarimov, and I. Ven, Theory and Application of Cycle-Origination Bifurcation [Russian translation], Mir, Moscow (1985).
3. B. Budyanskii and J. V. Hutchinson, Bulging: Attainment and Problems, Mechanics of Deformable Solids. Direction of Development [Russian translation], Mir, Moscow (1985), pp. 121?150.
4. S. Yoss and D. Joseph, Elementary Theory of Stability and Bifurcations [Russian translation], Mir, Moscow (1983).
5. A. S. Vol'mir, Stability of Deformable Systems [in Russian], Nauka, Moscow (1967).