The cross-ratio in Hjelmslev planes
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Publication:4209946
DOI10.21136/MB.1997.126149zbMath0901.51003OpenAlexW2729773380MaRDI QIDQ4209946
Publication date: 28 September 1998
Full work available at URL: https://eudml.org/doc/225407
Other finite incidence structures (geometric aspects) (51E30) Ring geometry (Hjelmslev, Barbilian, etc.) (51C05)
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