The German Trade association VFA-Interlift supplies all the lectures held at the VFA-Forum at the
- VFA-Forum interlift 2022
- VFA-Forum interlift 2019
- VFA-Forum interlift 2017
- VFA-Forum interlift 2015
- VFA-Forum interlift 2013
for downloading as PDF at: www.vfa-interlift.de
