I did. I found a bunch of papers by him, none of them relevant. Another user's comment makes it seem like there are papers of his cited in his book. By the time I saw that though, I'd gotten tired of trying to find evidence that the author of the article should have at least given basic information on how to find.
If he wants to make these claims, he needs to cite the evidence.
If he wants to make these claims, he needs to cite the evidence.