^Kuiper GG, Carlsson B, Grandien K, Enmark E, Häggblad J, Nilsson S, Gustafsson JA (1997). “Comparison of the ligand binding specificity and transcript tissue distribution of estrogen receptors alpha and beta”. Endocrinology. 138 (3): 863–70. doi:10.1210/endo.138.3.4979. PMID9048584.
^SOLMSSEN UV (1945). “Synthetic estrogens and the relation between their structure and their activity”. Chem. Rev. 37: 481–598. doi:10.1021/cr60118a004. PMID21013428.