Clark, Stephen (7. 12. 2019). „After redesigns, the finish line is in sight for SpaceX's Crew Dragon spaceship”. Spaceflight Now. Архивирано из оригинала 6. 6. 2020. г. Приступљено 1. 6. 2020. „With [the addition of parachutes] and the angle of the seats, we could not get seven anymore', Shotwell said. "So now we only have four seats. That was kind of a big change for us".”CS1 одржавање: Формат датума (веза)
Clark, Stephen (7. 12. 2019). „After redesigns, the finish line is in sight for SpaceX's Crew Dragon spaceship”. Spaceflight Now. Архивирано из оригинала 6. 6. 2020. г. Приступљено 1. 6. 2020. „With [the addition of parachutes] and the angle of the seats, we could not get seven anymore', Shotwell said. "So now we only have four seats. That was kind of a big change for us".”CS1 одржавање: Формат датума (веза)
„Falcon 9”. SpaceX. Архивирано из оригинала 15. 7. 2013. г. Приступљено 20. 1. 2016.CS1 одржавање: Формат датума (веза)