B. C. Qian

2 ta ish

Shanghai Astronomical Observatory

1. Optical observations of BL Lacertae from 1997 to 1999

   J. H. Fan, B. C. Qian, Jun Tao

   Maqola20012 iqtibos

   ABIABI:AkademIndex/2026.other.015901

2. Steps toward Determination of the Size and Structure of the Broad‐Line Region in Active Galactic Nuclei. XVI. A 13 Year Study of Spectral Variability in NGC 5548

   B. M. Peterson, P. Berlind, Ray Bertram +38

   MaqolaOAOchiq kirish20021 iqtibos

   ABIABI:AkademIndex/2026.other.804408