I desperately want to read Heisenberg's paper "On the Structure of the atomic nucleus" (1932) in which he proposed the idea of isospin
You'd think such an important paper would be everywhere online, but I just can't find it, not even in german (not that that would help, since I speak german very poorly)
This paper was published 90 years ago! Before modern copyright laws existed! Surely, surely, there must be a way for people to read it, right? Please, I'm desperate
To be honest I'm starting to suspect the paper was a just a collective fever dream. I mean, plenty of people mention it, but I have not seen any evidence that it actually exists, maybe it doesn't, maybe it's a myth. I'm joking, but I'm very close to saying that seriously
I'm loosing my freaking mind. The paper must exist somewhere online, please, help me find it. I just want to learn
I just want to learn
This is the paper, I believe — not a fever dream, but definitely German. Whether it is in or out of copyright is not immediately obvious to me (what is and is not public domain in the United States is pretty complicated).
An English translation is available in the appendices of D. M. Brink, Nuclear Forces (Pergamon Press, 1965), which you can view through Archive.org (create a free account and then you can "borrow" it online for an hour). If you want a copy of the German article, send me a PM and I will send you a copy.