TY - JOUR AU - David Hummer AU - D. Mihalas BT - The Astrophysical Journal DA - Jan-08-1988 DO - 10.1086/166600 PY - 1988 EP - 794 T2 - The Astrophysical Journal TI - The equation of state for stellar envelopes. I - an occupation probability formalism for the truncation of internal partition functions UR - http://adsabs.harvard.edu/full/1988ApJ...331..794H VL - 331 SN - 0004-637X ER -