1. A method of recording the direction of travel of ocean swell;Barber;Deep-Sea Research,1956
2. Bendat, J.S., Piersol, A.G., 1971. Random Data: Analysis and Measurement Procedures. John Wiley and Sons, New York.
3. Statistical reliability of computations based on wave spectral relations;Borgman;Proc. Int. Symp. on Ocean Wave Measurement and Analysis,1974
4. Directional spectra of wind generated waves;Donelan;Phil. Trans. R. Soc. Lond.,1985
5. Wave direction computation with three gauge arrays;Esteva;Proc. Fifteenth Coastal Engng. Conf. Honolulu, Hawaii,1976