I had the book out of the library a few years ago. I read some of it, but then it was on hold and I couldn't renew it. I don't think I looked at the notes on the background of the book, but they are discussed by several folks who reviewed it on amazon. If you go through the reviews there, you can see them. I will particularly mention the review by mnbkny. I'm linking the page on which on you should be able to find it.