1. N. A. Alfutov, Fundamentals of the Numerical Analysis of Stability of the Elastic Systems [in Russian], Mashinostroenie, Moscow (1978).
2. A. S. Vol’mir, Stability of Deformable Systems [in Russian], Nauka, Moscow (1967).
3. F. R. Gantmakher, Theory of Matrices [in Russian], Nauka, Moscow (1988).
4. A. N. Dinnik, “On the longitudinal bending of bars with variable cross sections,” Izv. Donsk. Politekh. Inst., No. 1, 390–404 (1913).
5. A. N. Dinnik, Longitudinal Bending. Twisting [in Russian], Izd. Akad. Nauk SSSR, Moscow (1955).