Rouchaud, J., Dreze, P., Moons, C., & Meyer, JA. (1983). Metabolic Study of Tritium Labeled Triforine in Barley. International Journal of Applied Radiation and Isotopes, 34(5), 841-846. https://doi.org/10.1016/0020-708X(83)90104-7 (Original work published 1983)