Axel Oskar Mathieu (1952-2019) created a comprehensive history of commercial vehicles in Germany but died, sadly, before the work ready was for publication.
His manuscript, at the request of his widow, has been published online with the help of his friends. His research covers more than 900 manufacturers and brands.
The plan is to publish the encyclopedia in wiki format, and those involved are currently seeking help with the task.
August 2021
Update
Burkhard Kehl and Monika Raatz have made considerable progress, and have converted the original pages to pdf format.
January 2026.