Author initiated.  to be published in 2014, official URL will be within:
http://www.ingentaconnect.com/content/cog/tme
Found paper -pre-published version:
https://events.iwc.int/index.php/scientific/SC65a/paper/viewFile/193/352/SC-65a-WW01
--MA 13/2/14. 'In press' -await publication Lyn 14/2/14. Verified HD 14/5/15