CSÁKI, F.; KÁRPÁTI, A. SOME REMARKS ON THE CONSTRUCTION OF PHASE TRAJECTORIES. Periodica Polytechnica Electrical Engineering, [S. l.], v. 10, n. 3, p. 215–223, 1966. Disponível em: https://pp.bme.hu/ee/article/view/5223. Acesso em: 18 may. 2024.