Designing Bike Trailers – Especially the hitch and load - Bicycles Stack Exchange
BOB Yak bicycle trailer in the test – velomotion.de
Slightly Off Track
Installing a Front Hitch for More Cargo Capacity - NASA Speed News Magazine
Founder's corner: 6 cargo bikes I have owned (Part 2) – Hagen Bikes
Trailer connection, off the shelf parts and proven performer - Bicycles Stack Exchange
Trailer connection, off the shelf parts and proven performer - Bicycles Stack Exchange
Here's The Physics Behind Tongue Weight And Why Some Trailers Sway Out Of Control - The Autopian
Blubrake creates electronic ABS for e-bikes, ruins those crazy cargo bike front skids - Bikerumor