Barbour S. Warren, Research Associate, BCERF & Carol Devine, Ph.D., R.D., Educational Project Leader, BCERF (revised July 2001). «Cornell University». Program on Breast Cancer and Environmental Risk Factors. Cornell University. Consultado el 19 de marzo de 2011.
Yao, Tuanli; Yue, Dawei; Larock, Richard C (2005). «An Efficient Synthesis of Coumestrol and Coumestans by Iodocyclization and Pd-Catalyzed Intramolecular Lactonization». Journal of Organic Chemistry70 (24): 9985-9989. PMID16292831. doi:10.1021/jo0517038.
Takeda, Norihiko; Miyata, Okiko; Naito, Takeaki (2007). «Efficient synthesis of benzofurans utilizing [3,3]-sigmatropic rearrangement triggered by N-trifluoroacetylation of oxime ethers: short synthesis of natural 2-arylbenzofurans». European Journal of Organic Chemistry2007 (9): 1491-1509. doi:10.1002/ejoc.200601001.
Yao, Tuanli; Yue, Dawei; Larock, Richard C (2005). «An Efficient Synthesis of Coumestrol and Coumestans by Iodocyclization and Pd-Catalyzed Intramolecular Lactonization». Journal of Organic Chemistry70 (24): 9985-9989. PMID16292831. doi:10.1021/jo0517038.