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Über Ordnungsverhaeltnisse auf affinen Ebenen. (German) Zbl 0527.51003


MSC:

51A35 Non-Desarguesian affine and projective planes
51A30 Desarguesian and Pappian geometries
51G05 Ordered geometries (ordered incidence structures, etc.)
20L05 Groupoids (i.e. small categories in which all morphisms are isomorphisms)

Citations:

Zbl 0201.230
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