Bruns, N., V. Köhler, R. Kramer, P. Mauleón, F. Monnard, and T. R. Ward. “Swiss Science Concentrates”.
CHIMIA
64, no. 11 (November 26, 2010): 824. Accessed April 6, 2025.
https://www.chimia.ch/chimia/article/view/2010_824
.