"Garabit en quelques dates". Garabit, la plus belle réalisation de Gustave Eiffel. Archived from the original on January 24, 2013. Retrieved October 3, 2011.
biographi.ca
Dictionary of Canadian Biography Online. "Biography". Retrieved July 18, 2007.
"Garabit en quelques dates". Garabit, la plus belle réalisation de Gustave Eiffel. Archived from the original on January 24, 2013. Retrieved October 3, 2011.