Internet consulté le 12-02-2005, http://www.britannica.com/nobel/micro/250_63.html
Information trouvée : Guillaume, Charles Édouard (b. Feb. 15, 1861, Fleurier, Switz.--d. June 13, 1938,
Sèvres, Fr.), French physicist whose exhaustive studies of ferronickel alloys culminated
in the discovery of invar (a nickel-steel alloy) and gained him the Nobel Prize for
Physics in 1920.
Petit Robert de noms propres, 2000