Steps toward determination of the size and structure of the broad-line region in active galatic nuclei. 8: an intensive HST, IUE, and ground-based study of NGC 5548K. T. Korista, G. M. MacAlpine, I. N. Evans et al.|The Astrophysical Journal Supplement Series|1995Cited by 254
Steps toward Determination of the Size and Structure of the Broad‐Line Region in Active Galactic Nuclei. XII. Ground‐based Monitoring of 3C 390.3M. Dietrich, G. M. Stirpe, B. M. Peterson et al.|The Astrophysical Journal Supplement Series|1998Cited by 116
VizieR Online Data Catalog: 3C 390.3 BVRI and H photometry (Dietrich+, 1998)M. Dietrich, G. M. Stirpe, B. M. Peterson et al.|VizieR Online Data Catalog|1999Cited by 0