- GDM 2015 49. Jahrestagung der Gesellschaft für Didaktik der Mathematik (9-13 February, Basel, Switzerland)
- smsa2015 12th Workshop on Stochastic Models, Statistics and Their Applications (16-20 February, Wroclaw, Poland)
- GN3 Symposium GN3plus Project Symposium (23-26 Athens, Greece)
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