I've been searching for the original paperoriginal paper by E.B. Bogomol'nyi titled "The Stability of Classical Solutions""The Stability of Classical Solutions" online, and have yet to find a resource which holds it. So far, the closest I've come is a random website which seems to have part of it at least, but it is quite a low-resolution scan: https://www.docsity.com/pt/the-stability-of-classical-solutions/4895287/
If anyone has access to a decent quality copy of this, it would be very helpful. Thanks!