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 (3S), vol. 379 - 388 (2015)., pp. 379 - 388 (2015).