%0 Journal Article %A Atilla Akpinar and Basri Celik %D 2010 %J International Journal of Mathematical and Computational Sciences %B World Academy of Science, Engineering and Technology %I Open Science Index 44, 2010 %T On Cross-Ratio in some Moufang-Klingenberg Planes %U https://publications.waset.org/pdf/7820 %V 44 %X In this paper we are interested in Moufang-Klingenberg planesM(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. %P 1202 - 1206