F. Brenner, J. Mangold, D. Eisenhut, N. Möbs, and A. Strohmayer. 12th EASN International Conference on "Innovation in Aviation & Space for opening New Horizons", 2526, page 012009. Institute of Physics, (2023)
U. Özinan, M. Kretschmer, F. Lemmer, and P. Cheng. The Science of Making Torque from Wind (TORQUE 2020), 1618, 4, page 052081. Institute of Physics Publishing, (2020)