Paull, John, Tord Tutturen, and Simon Halberg. “Carl Vett (1871-1956): Denmark’s Pioneer of Biodynamic Farming and Organic Agriculture”. Advances in Social Sciences Research Journal 12, no. 08 (August 5, 2025): 01–25. Accessed December 5, 2025. https://journals.scholarpublishing.org/index.php/ASSRJ/article/view/19200.