STÉPÁN, G. NONLINEAR DYNAMICS OF JOY-STICK CONTROLLED MACHINES Periodica Polytechnica Mechanical Engineering, [S. l.], v. 35, n. 1-2, p. 83–90, 1991. Disponível em: https://pp.bme.hu/me/article/view/5587. Acesso em: 6 apr. 2025.