Доступные ссылки:

Harvard: Torsvik, T., Herrmann, H., Didenkulova, I. I.& Rodin, A. 2015. Analysis of ship wake transformation in the coastal zone using time–frequency methods. Proceedings of the Estonian Academy of Sciences, 64(3), pp. 379-388, doi: 10.3176/proc.2015.3S.08