@article{Cunningham_1935,
title={Wave Action on Vertical Wall Breakwaters},
volume={136},
ISSN={1476-4687},
url={http://dx.doi.org/10.1038/136283a0},
DOI={10.1038/136283a0},
number={3434},
journal={Nature},
publisher={Springer Science and Business Media LLC},
author={Cunningham,
Brysson},
year={1935},
month=aug,
pages={283–286} }