@article{IM2_2016_80_6_a5,
     author = {I. D. Kan},
     title = {A strengthening of a~theorem of {Bourgain} and {Kontorovich.~IV}},
     journal = {Izvestiya. Mathematics },
     pages = {1094--1117},
     publisher = {mathdoc},
     volume = {80},
     number = {6},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2016_80_6_a5/}
}