SZILÁGYI, B. NONLINEAR CONTROL SYSTEM DYNAMICS CHARACTERIZATION BY ROOT-LOCUS CURVE. Periodica Polytechnica Electrical Engineering, [S. l.], v. 12, n. 4, p. 427–441, 1968. Disponível em: https://pp.bme.hu/ee/article/view/5180. Acesso em: 16 may. 2024.