OBOLENSKI, Boris; WULFHORST, Burkhard. The method of functioning of cylindrical alternators. Tekstil, "Zagreb, Croatia", v. 42, n. 2, p. 95–98, 1993. Disponível em: https://tekstil.hist.hr/index.php/tekstil/article/view/1037. Acesso em: 19 apr. 2026.