FRIBERG, Sten. Erik Severin: In Memoriam. Acta Orthopaedica, [S. l.], v. 29, n. 1-4, p. 256–257, 1959. DOI: 10.3109/17453675908988801. Disponível em: https://actaorthop.org/actao/article/view/30578. Acesso em: 18 jun. 2026.