@article{MOMA_1986__102_178285,
     author = {P.D.T.A. Elliott},
     title = {On the {Multiplicative} {Group} {Generated} by a {Dense} {Sequence} of {Integers.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {3--6},
     publisher = {mathdoc},
     volume = {102},
     year = {1986},
     zbl = {0606.10045},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1986__102_178285/}
}