AHNESJÖ, A.; ANDREO, P.; BRAHME, A. Calculation and Application of Point Spread Functions for Treatment Planning with High Energy Photon Beams. Acta Oncologica, [S. l.], v. 26, n. 1, p. 49–56, 1987. DOI: 10.3109/02841868709092978. Disponível em: https://medicaljournalssweden.se/actaoncologica/article/view/31863. Acesso em: 16 may. 2026.