The ACS Survey of Galactic Globular Clusters an HST Treasury Project to image 65 GCs.
FreeEOS by Alan Irwin is a software package for calculating the EOS in stellar interiors.
Low Temperature Opacities at WSU by Jason Ferguson and collaborators.
PHOENIX Model Atmospheres used extensively in the models presented here.
OPAL High Temperature Opacities and Equation of State tables.
Arnold Boothroyd's subroutines for interpolating the OPAL opacity tables including the "Type 2" tables that allow two elements to vary independently of X, Z, and each other.