@misc{A._Vignato_Two-colour,
 author={A. Vignato and D. Trevese and D. Nanni and A. T. Kalloghlian and A. G. Egikian and A. S. Amirkhanian},
 address={Երևան},
 howpublished={online},
 publisher={ՀՍՍՀ ԳԱ հրատ․},
 title={Two-colour photometry of clusters of galaxies. III. A2256},
 type={Հոդված},
 keywords={Science, Astrophysics, Galaxy},
}