?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Vithana&rft.aufirst=HPV&rft.au=Vithana%2C+HPV&rft.degree=Doctoral&rft.inst=UCL+(University+College+London)&rft.tpages=439&rft.title=The+effect+of+stone+protrusion+on+the+incipient+motion+of+rock+armour+under+the+action+of+regular+waves&rft.date=28+March+2013