TY - JOUR AU - David Hummer AU - P. Kunasz BT - The Astrophysical Journal DA - Jan-03-1980 DO - 10.1086/157779 PY - 1980 EP - 609 T2 - The Astrophysical Journal TI - Energy loss by resonance line photons in an absorbing medium UR - http://articles.adsabs.harvard.edu/full/1980ApJ...236..609H VL - 236 SN - 0004-637X ER -