Ολυμπιακή Επιτροπή. 2019-10-08 [2019-10-08]. (原始内容存档于2019-10-10). First Laser, Radial and 49erFX nations confirmed for Tokyo 2020. World Sailing. 2018-08-10 [2018-08-10]
elastically about 0.1mm on a hard bump (not ordinary road ripples), the elastic difference between the radial and cross-three wheel is 3% x 0.1mm = 0.003 mm
determined. FISA. 2021-05-16 [2021-05-16]. (原始内容存档于2021-05-16). First Laser, Radial and 49erFX nations confirmed for Tokyo 2020. World Sailing. 2018-08-10 [2018-08-10]