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Borojevic, R.; Boury-Esnault, N. (1987). Calcareous sponges collected by N.O. ‘Thalassa' on the continental margin of the Bay of Biscaye: I. Calcinea. In: Vacelet, J. & Boury-Esnault, N. (Eds), Taxonomy of Porifera from the N.E. Atlantic and Mediterranean Sea. NATO ASI Series G, Springer-Verlag: Berlin, Heidelberg. 13: 1-27.