Chú thích Traian_Vuia

  1. ↑ Chanute, Octave (tháng 10 năm 1907). “Pending European Experiments in Flying”. The American aeronaut and aerostatist. 1 (1): 13.
  2. ↑ Mola, Roger A (tháng 8 năm 2009), “The Birthplaces of Aviation. It didn't all happen at Kitty Hawk”, Air & Space Magazine.
  3. ↑ Angelucci,E. and Matricardi, P.; "World Aircraft: Origins–World War 1", Sampson Low (1977).
  4. ↑ Gibbs-Smith, Charles Harvard (1965). The world's first aeroplane flights (1903–1908) and earlier attempts to fly. Her Majesty's Stationery Office. tr. 31.
  5. ↑ Orna 1956, tr. 366.Lỗi sfn: không có mục tiêu: CITEREFOrna1956 (trợ giúp)