@article{IM2_2005_69_2_a5,
     author = {M. E. Changa},
     title = {On sums of multiplicative functions over numbers all of whose prime},
     journal = {Izvestiya. Mathematics},
     pages = {423--438},
     year = {2005},
     volume = {69},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2005_69_2_a5/}
}