Cichewicz RH, Valeriote FA, Crews P (2004). «Psymberin, a potent sponge-derived cytotoxin from Psammocinia distantly related to the pederin family». Org. Lett.6 (12): 1951-4. PMID15176791. doi:10.1021/ol049503q.
Pettit GR, Xu JP, Chapuis JC, Pettit RK, Tackett LP, Doubek DL, Hooper JN, Schmidt JM (2004). «Antineoplastic agents. 520. Isolation and structure of irciniastatins A and B from the Indo-Pacific marine sponge Ircinia ramosa». J. Med. Chem.47 (5): 1149-52. PMID14971894. doi:10.1021/jm030207d.
Cichewicz RH, Valeriote FA, Crews P (2004). «Psymberin, a potent sponge-derived cytotoxin from Psammocinia distantly related to the pederin family». Org. Lett.6 (12): 1951-4. PMID15176791. doi:10.1021/ol049503q.
Pettit GR, Xu JP, Chapuis JC, Pettit RK, Tackett LP, Doubek DL, Hooper JN, Schmidt JM (2004). «Antineoplastic agents. 520. Isolation and structure of irciniastatins A and B from the Indo-Pacific marine sponge Ircinia ramosa». J. Med. Chem.47 (5): 1149-52. PMID14971894. doi:10.1021/jm030207d.