^Sato T, Yoshida S, Hoshino H, Tanno M, Nakajima M, Hoshino T (June 2011). "Sesquarterpenes (C35 terpenes) biosynthesized via the cyclization of a linear C35 isoprenoid by a tetraprenyl-β-curcumene synthase and a tetraprenyl-β-curcumene cyclase: identification of a new terpene cyclase". Journal of the American Chemical Society. 133 (25): 9734–7. doi:10.1021/ja203779h. PMID21627333.