1. T Kawashima for his help
2. Morison J R and R C Crooke Water and Breaking Waves U S Memo No 1*0 March 1953 pp The Mechanics of Deep Water Shallow
3. Army CorDS of Engineers B E B Tech
4. 1-lU
5. Elliott John G Interim Report Hydrodynamics Laboratory Calif Inst of Tech Contract Noy-12561 U 1953