Gibbs, J.W. (1874–1878) On the Equilibrium of Heterogeneous Substances, Collected Works, Longmans, Green & Co., New York. PDF Archived 2012-10-26 at the Wayback Machine, archive.org
cambridge.org
Pimpinelli, Alberto; Villain, Jacques (2010). Physics of Crystal Growth. Cambridge: Cambridge University Press. pp. 2-5. ISBN 9780511622526.
Gibbs, J.W. (1874–1878) On the Equilibrium of Heterogeneous Substances, Collected Works, Longmans, Green & Co., New York. PDF Archived 2012-10-26 at the Wayback Machine, archive.org