VÁGÓ, István. STATE EQUATIONS FOR LINEAR NETWORK MODELS CONTAINING NULLATORS AND NORATORS Periodica Polytechnica Electrical Engineering, [S. l.], v. 20, n. 4, p. 399–409, 1976. Disponível em: https://pp.bme.hu/ee/article/view/4931. Acesso em: 19 may. 2024.