Wissenschaft 07 11 2012 - MP3-StereoTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoYewhala, Tekle28 ጥቅምት 2005ረቡዕ፣ ጥቅምት 28 2005https://p.dw.com/p/16fARማስታወቂያ