Research on authenticity analysis of ambergris
Perfumes, Cosmetics and Soaps with Special Reference to Synthetics, (Poucher, 1959)
Further spectral and chromatographic studies of ambergris (Rowland, S. et al, 2018)
Chromatographic and spectral studies of jetsam and archived ambergris. (Rowland, S.J. and Sutton, P.A. 2017)