Referring-domain totals come from the public Common Crawl graph (full page/anchor index like Ahrefs is paid-only). Linking pages and anchor texts below are a live web sample.
(PICS-1.1 "http://www.icra.org/pics/vocabularyv03/" l on "2010.05.31T16:34-0400" exp "2100.12.31T12:00-0400" r (n 0 s 0 v 0 l 0 oa 0 ob 0 oc 0 od 0 oe 0 of 0 og 0 oh 0 c 0))