@article{CM_1976__32_2_113_0,
     author = {Kroonenberg, Nelly},
     title = {Pseudo-interiors of hyperspaces},
     journal = {Compositio Mathematica},
     pages = {113--131},
     publisher = {Noordhoff International Publishing},
     volume = {32},
     number = {2},
     year = {1976},
     mrnumber = {413109},
     zbl = {0336.54008},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1976__32_2_113_0/}
}