René Waldmann, « L'Histoire des tunnels », Tunnels et ouvrages souterrains, sur www.aftes.asso.fr, Association Française des Tunnels et de l’Espace Souterrain (AFTES), (consulté le ), p. 83
(en) Lawrence Berlow, Reference Guide to Famous Engineering Landmarks of the World : Bridges, Tunnels, Dams, Roads and Other Structures, Routledge, , 275 p. (ISBN978-1-135-93254-1, lire en ligne)
(en) James Rennell, The Geographical System of Herodotus, Examined and Explained, by a Comparison with Those of Other Ancient Authors and with Modern Geography Etc, Bulmer, (lire en ligne)
(en) Charles MacFarlane, The Armenians : A Tale of Constantinople, Saunders and Otley, (lire en ligne)