1. The impact on seaplane floats during landing;Kármán;NACA TN,Oct. 1929
2. Über Stoss- und Gleitvorgänge an der Oberfläche von Flüssigkeiten;Wagner;ZAMM,1932
3. The impact of a solid body floating on the surface of an incompressible fluid;Sedov;CAHI Rept.,1934
4. A review of the essentials of impact force theories for seaplanes and suggestions for approximate design formulae;Monaghan;Aero. Res. Counc. Lond. Rep. Mem.,1952