Training materials
Max age: 1 month
and Authors: Björn Grüning or Melanie Foell or Nils Peder Willassen
and Contributors: Björn Grüning or Celia van Gelder or Dr. A.J. Pretorius or Dr. Konstantinos Sidiropoulos or Manimozhiyan Arumugam or Marek Vrbacky or Ms. Yo Yehudi or Nils Peder Willassen