Informatics in Schools. Sustainable Informatics Education for Pupils of all Ages 6th International Conference on Informatics in Schools: Situation, Evolution, and Perspectives, ISSEP 2013, Oldenburg, Germany, February 26–March 2, 2013. Proceedings - Diethelm, Ira; Mittermeir, Roland T. (Springer Berlin Heidelberg : Imprint: Springer, 2013)