proba_05-12-2018 <span data-mce-type="bookmark" style="display: inline-block; width: 0px; overflow: hidden; line-height: 0;" class="mce_SELRES_start"></span> Wird geladen… https://docs.google.com/presentation/d/1tZtGKGp_f61bDj8_WQjQplGQcnyZIZ66ItgekznsGVM/edit#slide=id.p EDIT the answer here