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Havel, Václav
Join systems and closure spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 7 (1966), issue 3, pp. 335-341
MSC: 50-05, 51Dxx | MR 0212650 | Zbl 0146.16105
References:
[1] W. PRENOWITZ: Projective geometries as multigroups. Amer. Journ. of Math. 65 (1943), 235-256. MR 0008146 | Zbl 0063.06336
[2] K. ČULÍK: Topologische Auffassung der Axiome der Verknüpfung von D. Hilbert. Zeitschr. f. math. Logik und Grundlagen d. Math. 11 (1965), 81-88. MR 0196558
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