1. C.E. Guillaume (1920), www.nobel.se/physics/laureates/1920.
2. C.E. Guillaume, C.R. Acad. Sci., 125 (1897), pp. 235–238.
3. E. Wasserman, Ferromagnetic Materials, Volume 5, ed. E.P. Wohlfarth (Amsterdam: North-Holland, 1990), pp. 237–322.
4. J. Wittenauer, editor, The Invar Effect (Warrendale, PA: TMS, 1996).
5. F.H. Ellinger, J. Metals, 8 (1956), pp. 1256–1259.