Paul McCartney: 'We never reformed The Beatles in case it ruined our legacy' - UNCUT
The Beatles Live Album Didn't Sound Great Until Abbey Road Used Custom Code to Remaster It
100 Greatest Beatles Songs
Why Did the Beatles Break Up?
The Beatles 'final song' Now And Then - featuring all four members - released, Ents & Arts News
Why did The Beatles stop performing live?, by Kieran McGovern, The Beatles FAQ
Beatles FAQ
How George, Ringo, John and Paul Each Left the Beatles
Paul McCartney Says A.I. Helped Complete 'Last' Beatles Song - The New York Times