@article{10_4153_CMB_1997_040_4,
     author = {Lee, Hyang-Sook},
     title = {The {Stable} and {Unstable} {Types} of {Classifying} {Spaces}},
     journal = {Canadian mathematical bulletin},
     pages = {341--351},
     year = {1997},
     volume = {40},
     number = {3},
     doi = {10.4153/CMB-1997-040-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1997-040-4/}
}