Abraham, M. T., Kellerman, O., Pettersson, M. and Wiberg, M. (2020) “High-velocity Helicopter Concepts”, TMAL02 Expert Conference, 24(2), pp. 45–46. Available at: https://wcc.ep.liu.se/index.php/TMAL02/article/view/684 (Accessed: 27 September 2022).