1. Slow drift oscillations of a ship in irregular waves;Faltinsen;Applied Ocean Research,1979
2. Low frequency second order wave exciting forces on floating structures;Pinkster;Netherlands Ship Model Basin Publication No. 650,1980
3. Analysis of peak mooring forces caused by slow vessel drift oscillations in random seas;Hsu;OTC-paper No. 1159,1970
4. Second order slowly varying forces on vessels in irregular waves;Newman,1974
5. Calculation of slowly varying drift forces;Marthinsen;Applied Ocean Research,1983