BENGT LINDSKOUG; ARNE DAHLER. Collimating System for Electron Beams. Acta Oncologica, [S. l.], v. 10, n. 4, p. 454–463, 1971. DOI: 10.3109/02841867109130791. Disponível em: https://medicaljournalssweden.se/actaoncologica/article/view/34001. Acesso em: 17 may. 2026.