@article{10_4064_fm_144_2_163_179,
     author = {Haseo Ki and Tom Linton},
     title = {Normal numbers and subsets of {N} with given densities},
     journal = {Fundamenta Mathematicae},
     pages = {163--179},
     publisher = {mathdoc},
     volume = {144},
     number = {2},
     year = {1994},
     doi = {10.4064/fm-144-2-163-179},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-144-2-163-179/}
}