@article{10_4153_CJM_1980_025_3,
     author = {Freiwald, Ronald C.},
     title = {k-Discreteness and {k-Analytic} {Sets}},
     journal = {Canadian journal of mathematics},
     pages = {331--341},
     year = {1980},
     volume = {32},
     number = {2},
     doi = {10.4153/CJM-1980-025-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-025-3/}
}