It looks like at least a few of his papers have been peer-reviewed: https://scholar.google.com/citations?user=wZH_N7cAAAAJ https://scholar.google.com/citations?

It looks like at least a few of his papers have been peer-reviewed: https://scholar.google.com/citations?user=wZH_N7cAAAAJ https://scholar.google.com/citations?user=wZH_N7cAAAAJ