KÉGL , I.; RÁZSÓ , I. LEVER-GEARS FOR TRACTOR-PLOUGHS, I. Periodica Polytechnica Mechanical Engineering, [S. l.], v. 8, n. 4, p. 367–380, 1964. Disponível em: https://pp.bme.hu/me/article/view/6294. Acesso em: 3 jul. 2024.