@article{10_4153_CMB_1969_066_8,
     author = {Eames, W.},
     title = {On {Strong} {Upper} {Densities}},
     journal = {Canadian mathematical bulletin},
     pages = {509--510},
     year = {1969},
     volume = {12},
     number = {4},
     doi = {10.4153/CMB-1969-066-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-066-8/}
}