@article{IM2_2019_83_1_a7,
     author = {M. E. Changa},
     title = {On integers whose number of prime divisors belongs to a~given residue class},
     journal = {Izvestiya. Mathematics },
     pages = {173--183},
     publisher = {mathdoc},
     volume = {83},
     number = {1},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2019_83_1_a7/}
}