D.; Yang, C. N., Statistical Theory of Equations of State and Phase Transitions. II. Lattice Gas and Ising Model, Physical Review, 1952, 87 (3): 410–419
and Societal Transitions. Celebrating a decade of EIST: What's next for transition studies?. 2021-12-01, 41: 86–88. Bibcode:2021EIST...41...86M. ISSN 2210-4224