1. Gehring, M., Tennhardt, L., Vogel, D., Bilitewski, B., 2003. Waste paper as a Source for Xenoestrogenic Compounds. In: Pullammanappallil, Pr., McComb, A., Diaz, L.F., Bidlingmaier, W. (Eds.), Proc. 4th Int. Conference ORBIT Ass. On Biol. Proc. Organics: Adv. Sustain. Soc., April 30–May 02, 2003 Perth, Australia, vol. 2, p53–p63.
2. RISKCYCLE (acronym) – Risk-based management of chemicals and products in a circular economy at a global scale. Available from: .