Montgenèvre: Peter Connolly, Hannibal and the Enemies of Rome (1978); (extensive summaryArhivat în , la Wayback Machine.); Col de la Traversette: Gavin de Beer, Alps and Elephants and Napoleon III; Mahaney 2008, "Hannibal's Odyssey; Environmental Background to the Alpine Invasion of Italia"; Mont Cenis: Denis Proctor, Hannibal's March in History. Other theories include the Col de Clapier (Serge Lancel, Hannibal (1995) and the Col du Petit Saint Bernard (Barthold Niebuhr).
Montgenèvre: Peter Connolly, Hannibal and the Enemies of Rome (1978); (extensive summaryArhivat în , la Wayback Machine.); Col de la Traversette: Gavin de Beer, Alps and Elephants and Napoleon III; Mahaney 2008, "Hannibal's Odyssey; Environmental Background to the Alpine Invasion of Italia"; Mont Cenis: Denis Proctor, Hannibal's March in History. Other theories include the Col de Clapier (Serge Lancel, Hannibal (1995) and the Col du Petit Saint Bernard (Barthold Niebuhr).