BÖGRE, Bálint; MÉSZÁROS, István. Problems of Ferrite Content Determination. Periodica Polytechnica Mechanical Engineering, [S. l.], v. 64, n. 2, p. 150–158, 2020. 10.3311/PPme.15022. Disponível em: https://www.pp.bme.hu/me/article/view/15022. Acesso em: 20 may. 2024.