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AKPINAR A., ÇELİK B.
International Journal of Computational and Mathematical Sciences, vol.4, no.6, pp.304-308, 2010 (Scopus)
In this paper we are interested in Moufang-Klingenberg planes M(A) defined over a local alternative ring A of dual numbers. We show that a collineation of M(A) preserve cross-ratio. Also, we obtain some results about harmonic points.