Indeed the original draft said USSR, but we are talking about Russian theories, not USSR scientists who are ethnically Ukrainian. We came to realize that we hav

Indeed the original draft said USSR, but we are talking about Russian theories, not USSR scientists who are ethnically Ukrainian. We came to realize that we have so little information about the exact theory and our best knowledge suggests that the theory is, while may or may not have been pioneered by a Ukrainian scientist (see the updated post), currently rooted in Russia and not in the former USSR.