TY - JOUR AU - Cuntz, M AU - Rammacher, W AU - Ulmschneider, P C2 - Astrophysical Journal DA - 1994-01-01 LA - en M1 - 432 PB - Astrophysical Journal PY - 1994 TI - Chromospheric heating and metal deficiency in cool giants: Theoretical results versus observations ER -