Some local and national distributions of sponges. Porcupine Newsletter, 2 (7): 162-165.
1985
Sponges of the British Isles ("Sponge IV"). I. Marine Conservation Soc., Ross on Wye, U.K.: 1-107.
1992
Sponges of the British Isles ("Sponge V"), a colour guide and working document. Marine Conservation Society, 175 pp.
1984
Campañas de estudio del macrobentos infralitoral rocoso en el parque natural de las islas Cíes (NW de España). Actas IV Simp. Iber. Estud. Bentos Marinho, 1: 271-305.
Quantification of sponge/coral interactions in a physically stressed reef community, NE Colombia. Mar. Ecol. Progr. Ser., 148: 125-134
1935
Additions to the Swedish sponge-fauna. Arkiv för Zoologi, 28B (5): 1-6.
1942
Sponges from the Swedish west-coast and adjacent waters. Thesis Lund Univ., 95 pp., 16 pls.
1998
A revision of Axinellidae (Porifera: Demospongiae) of the Central West-Atlantic Region. Smithsonian Contrib. Zool., 598: 1-47
1996
3-Alkylpiperidine alkaloids isolated from marine sponges of the order Haplosclerida. pp. 301-355. In: Pelletier, S.W., ed. Alkaloids: chemical and biological perspectives, vol. 10. Pergamon Press, Oxford.
1933
Ein für die Kieler Bucht und die Ostsee neuer Bohrschwamm. Schrifter naturwiss. Ver. Schleswis-Holstein, 20: 54-55.
1940
Eine neuere Ausbeute von Meeresschwämmen der West-und Südküste Portugals. Mem. Mus. Zool. Univ. Coimbra, (1), 116: 1-75.
1927
Kalk-und Kieselschwämme von Curaçao. Bijdr. Dierk., 25: 133-158.