1. A Parametric Wave Prediction Model;Hasselmann;J Phys Oceanogr,1976
2. Hasselmann, K. On the non-linear energy transfer in a gravity-wave spectrum Part 1. General theory. J Fluid Mech 1962;12(04):481-500. doi:10.1017/S0022112062000373.
3. Directional Wave Spectra Observed during JONSWAP 1973;Hasselmann;Journal of Physical Oceanog- raphy,1980
4. Komen, G.J., Cavaleri, L., Donelan, M., Hasselmann, K., Hasselmann, S., Janssen, P. Dynamics and Modelling of Ocean Waves. Cambridge: Cambridge University Press; 1996. ISBN 978-0521577816.
5. Stoker, J.J. Water Waves. Hoboken, NJ, USA: John Wiley & Sons, Inc.; 1992. ISBN 9781118033159. doi:10.1002/9781118033159.