GÁSPÁR, Zs.; ROLLER, B. GENERALIZATION OF THE STABILITY ANALYSIS OF ELASTIC SYSTEMS. Periodica Polytechnica Civil Engineering, [S. l.], v. 18, n. 1-2, p. 109–119, 1974. Disponível em: https://pp.bme.hu/ci/article/view/4232. Acesso em: 19 may. 2024.