@article{10_4153_CJM_1975_037_7,
     author = {Hong, Sung Sa},
     title = {Extensive {Subcategories} of the {Category} of {T} 1-spaces},
     journal = {Canadian journal of mathematics},
     pages = {311--318},
     year = {1975},
     volume = {27},
     number = {2},
     doi = {10.4153/CJM-1975-037-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-037-7/}
}