Analysis of information sources in references of the Wikipedia article "October 1956" in English language version.
October 31 in 1956: The US Navy R4D-5 Skytrain Que Sera Sera, commanded by Rear Admiral George Dufek, becomes the first airplane to make a landing at the South Pole.(Reference: Aviation Year by Year, Bill Gunston, ed. London: Amber Books Limited, 2001. Dorling Kindersley editions: ISBN 0-7513-3367-0, ISBN 0-7894-7986-9.)
October 31 in 1956: The US Navy R4D-5 Skytrain Que Sera Sera, commanded by Rear Admiral George Dufek, becomes the first airplane to make a landing at the South Pole.(Reference: Aviation Year by Year, Bill Gunston, ed. London: Amber Books Limited, 2001. Dorling Kindersley editions: ISBN 0-7513-3367-0, ISBN 0-7894-7986-9.)