Очень нужны следующие статьи:
Bo Sundman and John Ågren
A regular solution model for phases with several components and sublattices, suitable for computer applications
Journal of Physics and Chemistry of Solids
Volume 42, Issue 4, 1981, Pages 297-301
- DOI:
http://dx.doi.org/10.1016/0022-3697(81)90144-X