armstrong, page-6

I've been following the recent posts on Armstrong with great interest, and have researched him as far as possible. After reading his 'Business Cycle and the future' article and understanding that his 8.6 year cycles are based on 3141 days, which is really Pi*1000, I would like to find out more his work.

The issue is that most of his work is either out of print, or the servers no longer running (the princeton economics site). I downloaded another book he wrote, "The greatest bull market in history', but can't really find anything else.

Does anyone know of courses being offered on his work, or books written about him or any other sources of information about him?