@misc{A._P._Mahtessian_A,
 author={A. P. Mahtessian and V. H. Movsessian and E. Ye. Khachikian and H. Tiersch},
 address={Երևան},
 howpublished={online},
 publisher={ՀՀ ԳԱԱ հրատ.},
 title={A search of environmental effects on the physical charachteristics of galaxies in groups},
 type={Հոդված},
 keywords={Science, Astrophysics, Galaxy},
}