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I removed the link to asdfree, because I've seen this link pop up on other sites where the author is simply promoting his blog. It wasn't actually cited in the article, and it seemed irrelevant to an encyclopedia article about the topic. (Not to the topic itself, but to an article about the SIPP). — Preceding unsigned comment added by Fortranso (talk • contribs) 21:11, 3 October 2015 (UTC)[reply]