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http://journals.cambridge.org/action/displayAbstract?aid=1818684
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TJIPTO PRASTOWO,
ROSS W. GRIFFITHS,
GRAHAM O. HUGHES
and ANDREW McC. HOGG
(2008).
Mixing efficiency in controlled exchange flows. Journal of Fluid Mechanics, 600
,
pp 235-244
doi:10.1017/S0022112008000554