Perfection': Yankees Domingo Germán throws first perfect MLB game since 2012 – Action News Jax
Yankees Magazine: Oral history of 1998 Yankees
Today's Iconic Moment in NY Sports: David Wells throws a perfect game (Video)
Yankee Domingo German's perfect game vs. A's by the numbers
1998 Yankees Diary, May 17: David Wells' perfect game - Pinstripe Alley
1996 Yankees 20th Anniversary Retrospective: David Cone - Pinstripe Alley
David Cone's perfect game - Wikipedia
Yankees pitcher Domingo Germán throws 1st perfect game since 2012. It's the 24th in MLB history
Yankee Domingo German's perfect game vs. A's by the numbers
David Wells tosses the first regular-season perfect game in Yankee history in 1998 – New York Daily News
1998 Yankees recall David Wells' perfect game
Yankees win with pitching, defense - Taipei Times
David Wells New York Post