TY - JOUR
AU - D. Luttermoser
AU - Hollis Johnson
BT - The Astrophysical Journal
DA - Jan-03-1992
DO - 10.1086/171175
PY - 1992
EP - 579
T2 - The Astrophysical Journal
TI - Ionization and excitation in cool giant stars. I - Hydrogen and helium
UR - http://articles.adsabs.harvard.edu/full/1992ApJ...388..579L
VL - 388
SN - 0004-637X
ER -