BibTex format
@article{Wykes:2015:10.1017/jfm.2015.462,
author = {Wykes, MSD and Hughes, GO and Dalziel, SB},
doi = {10.1017/jfm.2015.462},
journal = {JOURNAL OF FLUID MECHANICS},
pages = {261--275},
title = {On the meaning of mixing efficiency for buoyancy-driven mixing in stratified turbulent flows},
url = {http://dx.doi.org/10.1017/jfm.2015.462},
volume = {781},
year = {2015}
}