TY - JOUR
AU - P. Guilbert
AU - Richard McCray
AU - A. Fabian
BT - The Astrophysical Journal
DA - Jan-03-1983
DO - 10.1086/160794
PY - 1983
EP - 466
T2 - The Astrophysical Journal
TI - Why are broad emission lines seen in Seyfert galaxies and not in BL Lacertae objects
UR - http://articles.adsabs.harvard.edu/full/1983ApJ...266..466G
VL - 266
SN - 0004-637X
ER -