@misc{A._T._Kalloghlian_BVR,
 author={A. T. Kalloghlian and D. Nanni and A. Vignato},
 address={Երևան},
 howpublished={online},
 publisher={ՀԽՍՀ ԳԱ հրատ.},
 title={BVR photometry of a distant cluster of galaxies A 665},
 type={Հոդված},
 keywords={Science, Astrophysics, Galaxy},
}