Training materials
Authors: Marko Vidak
and Contributors: Alex Botzki or Anatole Chessel or Björn Grüning or Celia van Gelder or Eija Korpelainen @eija, ekorpelainen@gmail.com or Jamie Edwards or Manimozhiyan Arumugam or Marek Vrbacky or Markus Englund or Matthias Fahrner or Sabine Österle or Vicky Schneider