TETZLAFF, G.; WULFHORST, Burkhard. Production and application of OE rotor yarns of medium and coarse fineness. Tekstil, "Zagreb, Croatia", v. 42, n. 6, p. 335–341, 1993. Disponível em: https://www.tekstil.hist.hr/index.php/tekstil/article/view/1094. Acesso em: 23 apr. 2026.