Hi if any of you can access this, bit of an obscure one..
Høpner Petersena. 1978. Life cycles and population dynamics of marine benthic bivalves from the Disko Bugt area of West Greenland. Ophelia.Volume 17, Issue 1, 1978 pages 95-120
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If you can please email to iridgway (at) hotmail.com
Cheers
Iain