@article{VMUMM_1996_6_a32,
     author = {N. M. Timofeev},
     title = {Additive problems for numbers having a given number of prime divisors},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {98--101},
     year = {1996},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1996_6_a32/}
}