Bürgy, Heribert, Gion Calzaferri, Daniel Herren, and Alexandre Zhdanov. “Spherosiloxanes and Spherometallosiloxanes”. CHIMIA 45, no. 1-2 (February 27, 1991): 3. Accessed May 5, 2024. https://www.chimia.ch/chimia/article/view/1991_003.