Sabri, Nawal N.; et al. (1989). "Two new rearranged abietane diterpene quinones from Salvia aegyptiaca L". The Journal of Organic Chemistry. 54 (17): 4097–4099. doi:10.1021/jo00278a021. ISSN0022-3263.
Sabri, Nawal N.; et al. (1989). "Two new rearranged abietane diterpene quinones from Salvia aegyptiaca L". The Journal of Organic Chemistry. 54 (17): 4097–4099. doi:10.1021/jo00278a021. ISSN0022-3263.