الفهرس 
Foundation of hyperbolic geometryOnly 14 pages are availabe for public view
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Abstract
E.Pachi announced in 1955 his principle[13] in eucldean geomatry and E.Raupach gave [15] some of its applications.
| الفهرس | Only 14 pages are availabe for public view
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Abstract E.Pachi announced in 1955 his principle[13] in eucldean geomatry and E.Raupach gave [15] some of its applications. | |||||||||||||||