@misc{K._S._Gigoyan_First, author={K. S. Gigoyan and H. V. Abrahamyan and M. Azzopardi and D. Russeil}, address={Երևան}, howpublished={online}, publisher={ՀՀ ԳԱԱ հրատ.}, title={First Byurakan spectral sky survey. Stars of late-spectral types. XIII. Zone +1º≤δ≤ +13º}, type={Հոդված}, keywords={Astrophysics, Science, Stars}, }