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Hooper, J.N.A.; Van Soest, R.W.M. (2002). Order Astrophorida Sollas, 1888. Pp 105-107 In:: Hooper, J.N.A.; van Soest, R.W.M. (Eds.) Systema Porifera: a guide to the classification of sponges. (2 Volumes) Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow). 1708 + xvliii. ISBN 0-306-47260-0 (printed version).