@article{UZERU_2016_2_a3,
     author = {T. L. Hakobyan},
     title = {On  the $P_1$  property of sequences of positive integers},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {22--27},
     publisher = {mathdoc},
     number = {2},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2016_2_a3/}
}