1. R. Lewandowski, Computational formulation for periodic vibration of geometrically nonlinear structures, Part 1: Theoretical background, Int. J. Solids Structures, 34(15), 1925–1947 (1997).
2. E. Riks, Some computational aspects of the atability analysis of nonlinear structures, Computational Methods in Applied Mechanical Engineering, 47, 219–259 (1984).
3. D.M. Klimov, V.M. Rudenko, Metody kompiuternoi algebry v zadacach mechaniki, Nauka, Moskva (1989).
4. R. Kulvietiene, G. Kulvietis, Analytical Computation Using Microcomputers, LUSTI, Vilnius (1989) (in Russian).
5. R. Kulvietiene, G. Kulvietis, J. Galkauskaite, Computer algebra application for large nonlinear oscillation systems, Mechaninė technologija, 24, 126–130 (1997).