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Gaspar M. Influence of mesh size and tooth spacing on the proportion of damaged organisms in the catches of the Portuguese clam dredge fishery. ICES Journal of Marine Science. 2002;59(6):1228 - 1236. doi:10.1006/jmsc.2002.1310

Gaspar M. A comparison of direct macrofaunal mortality using three types of clam dredges. ICES Journal of Marine Science. 2003;60(4):733 - 742. doi:10.1016/S1054-3139(03)00023-7