Recruitment in the field of Balanus improvisus and Mytilus edulis in response to the antifouling cyclopeptides barettin and 8,9-dihydrobarettin from the marine sponge Geodia barrette - Sjoegren, M; Dahlstroem, M; Goeransson, U; Jonsson, P; Bohlin, L (Biofouling, 2004)