J. R. Valdés

2 works

Instituto Nacional de Astrofisica, Optica y Electronica , Tonantzintla, Puebla, Mexico

1. Variability of the Hβ broad emission line in agn

   A. I. Shapovalova, А. Н. Буренков, N. G. Bochkarev +12

   ArticleGalaxies: Formation, Evolution, PhenomenaAstronomical and Astrophysical Transactions20010 citations

   ABIABI:AkademIndex/openalex/2001.article.000202

2. Spectral and photometric monitoring of Seyfert galaxies and quasars in 1998. 1. observations

   A. I. Shapovalova, N. G. Bochkarev, A. N. Burenkov +10

   ArticleAstronomical Observations and InstrumentationAstronomical and Astrophysical Transactions20010 citations

   ABIABI:AkademIndex/openalex/2001.article.000211