@article{MZ_1977__156_172579,
     author = {Jan van Mill},
     title = {Relations between {\ss} {X} / {X} and a {Certain} {Subspace} of ... {X.}},
     journal = {Mathematische Zeitschrift},
     pages = {187--204},
     publisher = {mathdoc},
     volume = {156},
     year = {1977},
     zbl = {0343.54017},
     url = {http://geodesic.mathdoc.fr/item/MZ_1977__156_172579/}
}