You're not looking hard enough. Try to find someone who actually read it or the Constitution or the historical writings of Supreme Court Justices or talk to their cleaning ladies.
Then you should have absolutely no problem citing any number of articles published in known law review journals, of which there are dozens.
However, the opinions of non-lawyers, non-scholars or other internet bloggers I find absolutely and wholly without merit. Of course, without these people, birthers would only have the weather to talk about.