PÁVÓ, Imre. ON THE SOLVABILITY OF THE NULLATOR-NORATOR PAIRS NETWORK. Periodica Polytechnica Electrical Engineering, [S. l.], v. 32, n. 2-4, p. 129–143, 1988. Disponível em: https://pp.bme.hu/ee/article/view/4617. Acesso em: 19 may. 2024.