Some white papers I have enjoyed:
History of 1625 Swerves published the year after their 6 wheel swerve
Bumper Guide - a great resource on bumper construction
Zondag’s arguement for Stop The Build in 2016 - A really interesting look at factors of team success, more than just the bag
Analysis on Yelling Robot - Makes me smile
The Shop Dog Effect - Is a whitepaper? No. Am I very biased? Yes. “Science” and dogs? Yes and yes.