Van Duzer 2012, pp. 282–283. Van Duzer, Chet (2012). "A Neglected Type of Medieval Mappamundi and Its Re-imaging in the Mare Historiarum (Bibliothèque nationale de France MS Lat. 4915, Fol. 26v)". Viator. 43 (2): 277–301. doi:10.1484/J.VIATOR.1.102714.
Van Duzer 2012, p. 283 n.24, says "seven manuscripts", but lists only six. Van Duzer, Chet (2012). "A Neglected Type of Medieval Mappamundi and Its Re-imaging in the Mare Historiarum (Bibliothèque nationale de France MS Lat. 4915, Fol. 26v)". Viator. 43 (2): 277–301. doi:10.1484/J.VIATOR.1.102714.
Van Duzer 2012, p. 283 n.24. Van Duzer, Chet (2012). "A Neglected Type of Medieval Mappamundi and Its Re-imaging in the Mare Historiarum (Bibliothèque nationale de France MS Lat. 4915, Fol. 26v)". Viator. 43 (2): 277–301. doi:10.1484/J.VIATOR.1.102714.
Van Duzer 2012, p. 283. Van Duzer, Chet (2012). "A Neglected Type of Medieval Mappamundi and Its Re-imaging in the Mare Historiarum (Bibliothèque nationale de France MS Lat. 4915, Fol. 26v)". Viator. 43 (2): 277–301. doi:10.1484/J.VIATOR.1.102714.