Vermeirssen, Etiënne L. M., Rik I. L. Eggen, Beate I. Escher, and Marc J.-F. Suter. “Estrogens in Swiss Rivers and Effluents – Sampling Matters”. CHIMIA 62, no. 5 (May 28, 2008): 389. Accessed April 29, 2024. https://www.chimia.ch/chimia/article/view/2008_389.