film: https://youtu.be/pP5vvEvy9Fs
bron//source:
https://open-l-gauge.eu/klv12-dr-alpers-and-beilhack/
bouwplan//constructionplan:
https://open-l-gauge.eu/klv12-dr-alpers-and-beilhack/
van bouwer//from builder:
By Thomas Reincke https://open-l-gauge.eu
