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@article{MZ_1978__163_172742, author = {W. Wistar Comfort and Liam O'Callaghan}, title = {Spaces {Y} {Homeomorphic} to {{\ss}Y} {Y.}}, journal = {Mathematische Zeitschrift}, pages = {103--110}, publisher = {mathdoc}, volume = {163}, year = {1978}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MZ_1978__163_172742/} }
W. Wistar Comfort; Liam O'Callaghan. Spaces Y Homeomorphic to ßY Y.. Mathematische Zeitschrift, Tome 163 (1978), pp. 103-110. http://geodesic.mathdoc.fr/item/MZ_1978__163_172742/