BÉDA, Gyula. THE EQUATION OF MOTION OF MECHANICAL SYSTEMS BASED ON D’ALEMBERT-LAGRANGE’S EQUATION Periodica Polytechnica Mechanical Engineering, [S. l.], v. 41, n. 2, p. 79–84, 1997. Disponível em: https://www.pp.bme.hu/me/article/view/5470. Acesso em: 16 may. 2025.