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Publication:3182605
zbMath1177.51016MaRDI QIDQ3182605
Publication date: 12 October 2009
Full work available at URL: http://www.heldermann.de/JGG/JGG12/JGG122/jgg12016.htm
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
spherical geometryhyperbolic geometryelliptic geometrydouble tangent circlefocal propertymethod of abridged notationsphero-conic
Elementary problems in Euclidean geometries (51M04) Elementary problems in hyperbolic and elliptic geometries (51M09) Descriptive geometry (51N05) Analytic geometry with other transformation groups (51N25)
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