Baker Hosted Isner Awards 3Xs
I'm not sure how to 'prove' this, but when I was writing term papers in high school , 'common knowledge' did not have to be foot-noted.  I would imagine this is common knowledge to those in the comics field. 

I fear Wikipedic litigation, as a certain unamed user has an anal-retentive penchant for verifying the most mundane of facts, due to his near-orgasmic love of comic books.