@article{10_4153_CJM_1984_004_1,
     author = {Swardson, Mary Anne},
     title = {The {Character} of {Certain} {Closed} {Sets}},
     journal = {Canadian journal of mathematics},
     pages = {38--57},
     year = {1984},
     volume = {36},
     number = {1},
     doi = {10.4153/CJM-1984-004-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1984-004-1/}
}