B.F. Bowden, J.C. Coll, and D.M. Tapiolas (1983). “Studies of Australian soft corals. XXX. A novel trisnorsesquiterpene from a Cespitularia species and the isolation of guaiazulene from a small blue Alcyonium species”. Australian Journal of Chemistry36: 211 – 214. doi:10.1071/CH9830211.
M. Guarrera, L. Turbino, A. Rebora (2001). “The Anti-Inflammatory Activity of Azulene”. Journal of the European Academy of Dermatology and Venereology15: 486–487. doi:10.1046/j.1468-3083.2001.00340.x.
worldcat.org
search.worldcat.org
Harmon AD, Weisgraber KH, Weiss U. (1979). “Preformed azulene pigments of Lactarius indigo (Schw.) Fries (Russulaceae, Basidiomycetes)”. Cellular and Molecular Life Sciences36 (1): 54–56. ISSN1420-682X.