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Hooper, J.N.A.; Van Soest, R.W.M.; Debrenne, F. (2002 [2004]). (2002). Phylum Porifera Grant, 1826. Pp. 9-14 In: Hooper, J.N.A.; van Soest, R.W.M. (Eds.) (2002) Systema Porifera: a guide to the classification of sponges. (2 Volumes) Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow). 1708 + xvliii. ISBN 978-1-4615-0747-5 (eBook electronic version).