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@article{PIM_1966_N_S_06_20_a16, author = {Ladislav Skula}, title = {The {Subset} {P+} {And} {P-} {Of} {The} {Split} {Interval}}, journal = {Publications de l'Institut Math\'ematique}, pages = {120 }, publisher = {mathdoc}, volume = {_N_S_06}, number = {20}, year = {1966}, url = {http://geodesic.mathdoc.fr/item/PIM_1966_N_S_06_20_a16/} }
Ladislav Skula. The Subset P+ And P- Of The Split Interval. Publications de l'Institut Mathématique, _N_S_06 (1966) no. 20, p. 120 . http://geodesic.mathdoc.fr/item/PIM_1966_N_S_06_20_a16/