@inbook{3365894131314909b4998cc9cbcd45d0,
title = "Identification and size estimation of Spisula subtruncata and Ensis americanus from shell fragments in stomachs and faeces of Common Eiders Somateria mollissima and Common Eiders Scoters Melanitta nigra",
author = "M.F. Leopold and P.C. Spannenburg and J.P. Verdaat and R.K.H. Kats",
year = "2007",
language = "English",
isbn = "9789036730051",
series = "Scientific contributions",
publisher = "Rijksuniversiteit Groningen",
number = "19",
pages = "63--85",
editor = "R.K.H. Kats",
booktitle = "Common Eiders Somateria mollisssima in the Netherlands The rise and fall of breeding and wintering populations in relation to the stocks of shellfish",
}