ALBRECTSEN, Esben. George Duby: Verdens bedste ridder. Guillaume le Maréchal. Oversat af Jacques Berg. Forum, 1987. 171 s. . Historisk Tidsskrift, [S. l.], v. 15, p. 447–448, 1989. DOI: 10.7146/ht.v15i0.53197. Disponível em: https://tidsskrift.dk/historisktidsskrift/article/view/53197. Acesso em: 16 jun. 2026.