You reverted me and gave a reason when I called it external links, I reverted you and gave a reason again. I don't see the dispute. Now, if you read verifiability, self published sources are reliable published sources:
 At the other end of the reliability scale lie personal websites, weblogs (blogs), bulletin boards, and Usenet posts, which are not acceptable as sources. Rare exceptions may be when a well-known professional person or acknowledged expert in a relevant field has set up a personal website using his or her real name. Even then, we should proceed with caution, because the information has been self-published, which means it has not been subject to any independent form of fact-checking.

So if the person who wrote this can be found to be an acknowledged expert in a relevent feild, then it can be a reference. If he has not, then it can not. Simple?