Fil:Newton-Teleskop.svgholder of this work, hereby publishes it under the following license: Derivative works of this file: Newton-Teleskop-es.svg Newtonian telescope.svg English
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Fil:Teleskop Newtona.svgDescriptionTeleskop Newtona.svg Newton Telescope Date 25 September 2006 Source own work created in Inkscape, based on the graphics under PD license made