https://blog.p2pfoundation.net/open-source-3d-printing-as-a-means-of-learning-an-educational-experiment-in-two-high-schools-in-greece/2013/11/18 Researching, documenting and promoting peer to peer practices Sat, 25 Oct 2014 10:41:44 +0000 hourly 1 https://wordpress.org/?v=5.5.15