SpaziergangsforscherTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoArnold, Ronny01.09.20101. September 2010deutsch: Spaziergangsforscher - Produziert: 26.08.2010 - 16:40:11 von Arnold, Ronnyhttps://p.dw.com/p/P1mHAnzeige