web | Gretchen Reynolds | New York Times | 2012-12-26 | |
web | Dave Coverly | 2020-07-30 | ||
web | Bill Watterson | 1993-02-01 | ||
web | ScienceDaily | 2012-07-02 | ||
web | Alicia Chang | Associated Press | 2012-05-22 | |
web | Katherine Seligman | San Francisco Chronicle | 2010-05-17 | |
web | LiveScience | 2010-01-12 | ||
web | Yoann Bourgeois | YouTube | 2016-08-01 | |