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2. Contribution à la connaissance d'une algue rarissime Phaeodactylum tricornutum Bohlin;Bourrelly;Bull. de Microscopie Appl.,1955
3. Trends in nursery rearing of bivalve molluscs;Claus,1981
4. Nursery Culturing of Bivalve Molluscs,1981
5. Onshore nursery rearing of bivalve molluscs in Belgium;Claus,1983