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WikiPedia: Verville Sport Trainer AT http://www.aviation-history.com/garber/vg-bldg/ver... http://www.aviation-history.com/garber/vgarb.html http://www.aero-web.org/specs/verville/ypt-10.htm https://web.archive.org/web/20090115055054/http://... https://commons.wikimedia.org/wiki/Category:Vervil...