Space-for-All at HobbySpace » Comparing two famous near earth asteroids (in en) (2013-03-19). Retrieved on 2013-03-25.no license. Mr. Caroll mentions name of photographer in watermark, but claims copyright for the result
Leonard David (2013-02-18). Asteroid 2012 DA14: Long Gone from Earth « Coalition for Space Exploration (in en). Retrieved on 2013-03-25.wrong use of license. Mr. Caroll mentions name of photographer in watermark with "GNU FREE", but claims copyright for the result
user "Julie" at B612 foundation (2013-03-19). How big are asteroids anyway? / B612 Foundation (in en). Retrieved on 2013-03-25.no license. Mr. Caroll mentions name of photographer in watermark, but claims copyright for the result