"Italy – Switzerland Boundary"(PDF). Florida State University. International Boundary Study. US. Department of State. 23 October 1961. Archived from the original(PDF) on 10 June 2016. Retrieved 22 August 2016.
geoportail.fr
Cartes IGN (Map). L'Institut national de l'information géographique et forestière. Retrieved 22 August 2016.
"Italy – Switzerland Boundary"(PDF). Florida State University. International Boundary Study. US. Department of State. 23 October 1961. Archived from the original(PDF) on 10 June 2016. Retrieved 22 August 2016.