CSÁKI, Frigyes. A SURVEY OF PREVIOUS AND RECENT TRENDS IN CONTROL ENGINEERING Periodica Polytechnica Electrical Engineering, [S. l.], v. 17, n. 2, p. 99–119, 1973. Disponível em: https://pp.bme.hu/ee/article/view/5004. Acesso em: 19 may. 2024.