Essential Singularities at First-Order Phase Transitions
W. Klein, D. J. Wallace, and R. K. P. Zia
Phys. Rev. Lett. 37, 639 (1976) - Published 13 September, 1976
Renormalization Group Results for Lattice-Gas Phase Boundaries in Two Dimensions
K. R. Subbaswamy and G. D. Mahan
Phys. Rev. Lett. 37, 642 (1976) - Published 13 September, 1976