Differences in density and growth in a cockle population in the Dutch Wadden Sea
Kristensen, I. (1957). Differences in density and growth in a cockle population in the Dutch Wadden Sea. PhD Thesis. Rijksuniversiteit te Leiden: Leiden. 1 map, 103 pp.
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Kristensen, I. (1958). Differences in density and growth in a cockle population in the Dutch Wadden Sea. Arch. Neerl. Zool. 12(3): 351-453. https://dx.doi.org/10.1163/036551658x00038, more