Wissenschaft 04 07 2012(CERN u.Windparks) - MP3-StereoTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoYewhala, Tekle27 ሰኔ 2004ረቡዕ፣ ሰኔ 27 2004https://p.dw.com/p/15RKPማስታወቂያ