P. A. Heckert

1 ta ish

California State University, San Bernardino

1. UBVRI field comparison stars for selected active quasars and BL Lacertae objects

   Paul S. Smith, T. J. Balonek, P. A. Heckert +2

   Maqola19852 iqtibos

   ABIABI:AkademIndex/2026.other.159896