Since the article is in german, here another article by the huffington post.
<a href="http://www.huffingtonpost.com/2014/07/15/zero-waste-grocery-store_n_5585856.html?&ncid=tweetlnkushpmg00000048" rel="nofollow">http://www.huffingtonpost.com/2014/07/15/zero-waste-grocery-...</a>