Zweifel, Bernhard O. “Primat Der Chemie – Produktion in Mehrzweck-Batch-Anlagen: The First Priority of Chemistry – Production in Multipurpose Batch Plants”. CHIMIA 54, no. 12 (December 20, 2000): 734. Accessed May 2, 2024. https://www.chimia.ch/chimia/article/view/2000_734.