@misc{K._S._Gigoyan_Investigation,
 author={K. S. Gigoyan and A. Sarkissian and D. Russeil and N. Mauron and G. Kostandyan and R. Vartanian and H. V. Abrahamyan and G. M. Paronyan},
 howpublished={online},
 publisher={ՀՀ ԳԱԱ},
 title={Investigation of faint Galactic carbon stars from the First Byurakan Spectral Sky Survey. Optical variability. I. N-type AGB carbon stars. K-band absolute magnitudes and distances},
 type={article},
 keywords={Astrophysics, Science, Radiation, Stars},
}