Original author Ivan Katchanovski has given explicit permission to everyone in the world to rehost and republish his paper.

We immortalised it on ProleWiki because it's a very important paper even though some of the content is a bit both sidesy. Actually we were looking at possibly writing a preface to help new comrades parse this paper, but I feel that would make it our own reedition, which is a very different thing from republishing.