1. Timme, A. & Wille, R. 1957 Jb. schiffbautech. Ges. 51,215–221.
2. Bellhouse, B. J. & Wood, C. J. 1965 J. R. Aero. Soc. 69,789–791.
3. Roshko, A. 1954b Nat. Adv. Comm. Aero. Wash. Tech. Note, no. 3169.
4. Roshko, A. 1961 J. Fluid Mech. 10,345–356.
5. Nash, J. F. , Quincey, V. G. & Callinan, J. 1963 Aero. Res. Counc., Lond. Rept. no. 25,070.