KARSAI, K. FEHLER UND BEMESSUNG VON SPANNUNGSWANDLERN. Periodica Polytechnica Electrical Engineering, [S. l.], v. 3, n. 2, p. 119–134, 1959. Disponível em: https://pp.bme.hu/ee/article/view/5388. Acesso em: 17 may. 2024.