BibTex format
@techreport{Sobey:1999,
author = {Sobey, RJ},
booktitle = {Real Sea States: Advanced Short Course Notes},
publisher = {Leichtwei-Institut f_r Wasserbau, Technische Universit"t Braunschweig},
title = {Real Sea States - Wave Grouping},
year = {1999}
}