LENGYEL, László; VAJTA JR. , Miklós. OPTIMUM CONTROL OF DISTRIBUTED PARAMETER SYSTEMS BY DIGITAL COMPUTER Periodica Polytechnica Electrical Engineering, [S. l.], v. 18, n. 4, p. 405–419, 1974. Disponível em: https://pp.bme.hu/ee/article/view/4992. Acesso em: 18 may. 2024.