NASA yanked a lot of material away from their NTRS (NASA technical reports server) some years ago. A lot of research papers that I would have needed in my resea

NASA yanked a lot of material away from their NTRS (NASA technical reports server) some years ago. A lot of research papers that I would have needed in my research were gone. I can find some of that stuff via Sci-Hub but not everything. At one point I was looking for a retracted paper and I even contacted my local (non-US) representative (the contact that was listed in NTRS) to try to get that paper, but they didn't even try to help me. A lot of the retracted papers were fundamental research dating back to the space race era. Glad to see more research being published but really, a lot of it was previously available but got yanked due to politics.