Доступные ссылки:

Harvard: Giniyatullin, A. R., Kurkin, A. A., Semin, S. V.& Stepanyants, Y. A. 2014. Transformation of narrowband wavetrains of surface gravity waves passing over a bottom step.. Mathematical Modelling of Natural Phenomena, 9(5), pp. 73-82, doi: 10.1051/mmnp/20149505