Training materials
Difficulty level: Not specified
and Licence: Creative Commons Attribution 4.0 International
and Authors: Youri Hoogstrate
and Contributors: Björn Grüning or Celia van Gelder or Frederick Carver or Gildas Le Corguillé or Manimozhiyan Arumugam or Marek Vrbacky or Nils Peder Willassen