Pushing STEM-education through a social-media-based contest format - experiences and lessons-learned from the H2020-project SciChallenge. - Florian Huber; Bernhard Jäger; Sabri Pllana; Zdenek Hrdlicka; Christos Mettouris; George A. Papadopoulos; Tamara Matevc; Zsófia Ocsovszky; Edina Hajdu; Chris Gary; Phil Smith (CoRR, 2017)