Wissenschaft 07 12 2011(Zukunftspreis 2011) - MP3-StereoTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoYewhala, Tekle27 ኅዳር 2004ረቡዕ፣ ኅዳር 27 2004https://p.dw.com/p/13OTUማስታወቂያ