TY - JOUR
AU - David Hummer
AU - G. Rybicki
BT - The Astrophysical Journal
DA - Jan-03-1992
DO - 10.1086/171076
PY - 1992
EP - 248
T2 - The Astrophysical Journal
TI - The Sobolev approximation for line formation with partial frequency redistribution
UR - http://articles.adsabs.harvard.edu/full/1992ApJ...387..248H
VL - 387
SN - 0004-637X
ER -