File:Messe Erfurt.JPGDescriptionMesse Erfurt.JPG Die Messehalle 1 der Messe Erfurt (Thüringen). Date 1 August 2013 Source Messe Erfurt GmbH Author Barbara Neumann Permission
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File:073 MesseErfurt Bienen 2013.jpgCreative Commons Attribution-Share Alike 3.0 Germany license. Attribution: Messe Erfurt GmbH You are free: to share – to copy, distribute and transmit the work