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@article{MAN_1930__102_159398, author = {A.H. Blue}, title = {On the {Structure} of {Sets} of {Points} of {Classes} {One,} {Two} and {Three}}, journal = {Mathematische Annalen}, pages = {624--632}, publisher = {mathdoc}, volume = {102}, year = {1930}, zbl = {55.0055.02}, url = {http://geodesic.mathdoc.fr/item/MAN_1930__102_159398/} }
A.H. Blue. On the Structure of Sets of Points of Classes One, Two and Three. Mathematische Annalen, Tome 102 (1930), pp. 624-632. http://geodesic.mathdoc.fr/item/MAN_1930__102_159398/