Foucart, G., Peeters, B., & Ledent, J.-F. (1981). [Effect of Seed Treatments With Growth-regulators and Growth Stimulating Substances On Seedling Emergence of Sugar-beets]. Bulletin de la Société Royale de Botanique de Belgique, 114(2), 181-188. https://hdl.handle.net/2078.5/144801 (Original work published 1981)