- Figure Skating: Ladies the Quad - Golden Skate
- Nathan Chen Was The First Skater To Land Quadruple Jumps | Next Generations | TIME - YouTube
- figure skater Ilia Malinin lands 1st quad axel in competition
- Russian becomes first woman to land a 'quad' the Olympics, helps
- Repetition of limited as ISU approve of technical rules
- Has anyone a axel in figure skating? ksdk.com
- What Is a Quad Figure Kamila Valieva's Jumps at Beijing Olympics – NBC New York
- quintuple in figure skating possible? physiology and physics, and what matters in the sport.
- Women's Skating Jumps History: Surya Bonaly Tried Do It Years Ago | Time
- Ilia Malinin Skating's Holy A Quadruple Axel - WSJ
- Figure skating-'King of jumps': Why quad is so difficult |
- Hanyu Yuzuru becomes the first skater in history to execute quadruple Axel on stage-Xinhua
- Quad (figure skating) -
- Nathan Makes a Comeback With 6 Quads - The New York Times
- Ilia Malinin: The teenage ice skating phenomenon history |
- EXPLAINER: figure skaters quadruple jumps
- How Quad Jump Is Changing Women's Figure Skating - The New York Times
- Watch Kamila Valieva land 1st women's at Winter Olympics
- Jumping wizards make possibilities seem endless — Globetrotting Philip Hersh
- Figure Kamila Valieva with Quad — What to Know
- skater Kamila Valieva, 15, becomes 1st woman to land a at Olympics : NPR
- Made History 6 Quad Jumps. What's That? | Time
- How Quad Jumps Figure | FiveThirtyEight
- Kamila Valieva: skater is woman to land quad at Olympics
- EXPLAINER: How figure quadruple jumps AP News