Van Der Watt, Elmarie; Pretorius, Johan C (2001). "Purification and identification of active antibacterial components in Carpobrotus edulis L". Journal of Ethnopharmacology. 76 (1): 87–91. doi:10.1016/S0378-8741(01)00197-0. PMID11378287.
Calzada, F; Cerda-García-Rojas, CM; Meckes, M; Cedillo-Rivera, R; Bye, R; Mata, R (1999). "Geranins a and B, new antiprotozoal A-type proanthocyanidins from Geranium niveum". Journal of Natural Products. 62 (5): 705–9. doi:10.1021/np980467b. PMID10346950.
Van Der Watt, Elmarie; Pretorius, Johan C (2001). "Purification and identification of active antibacterial components in Carpobrotus edulis L". Journal of Ethnopharmacology. 76 (1): 87–91. doi:10.1016/S0378-8741(01)00197-0. PMID11378287.
Calzada, F; Cerda-García-Rojas, CM; Meckes, M; Cedillo-Rivera, R; Bye, R; Mata, R (1999). "Geranins a and B, new antiprotozoal A-type proanthocyanidins from Geranium niveum". Journal of Natural Products. 62 (5): 705–9. doi:10.1021/np980467b. PMID10346950.