@misc{Parsamian_E._S._Catalog,
 author={Parsamian, E. S. and Petrosyan, V. M.},
 howpublished={online},
 language={en},
 abstract={The catalogue of cometary nebulae and related objects is compiled using the known up to the publication date lists.},
 title={Catalog of cometary nebulae and related objects (−42◦ < δ < +60◦)},
 type={Հոդված},
 keywords={Astronomy},
}