@article{10_4153_CJM_1975_001_3,
     author = {Stavrakas, Nick M.},
     title = {Ln {Sets} and the {Closures} of {Open} {Connected} {Sets}},
     journal = {Canadian journal of mathematics},
     pages = {1--5},
     year = {1975},
     volume = {27},
     number = {1},
     doi = {10.4153/CJM-1975-001-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-001-3/}
}