1. Bardsley, C. E. (1960). Absorption of sulfur from organic and inorganic sources by bush beans. Agr. J., 52, 485–6.
2. Bittel, R. (1980). Le technétium et l’environnement. Radioprotection, 15 (3), 143–6.
3. Bolin, B. et Cook, B. (Ed.) (1983). The major biogeochemical cycles and their interactions. Scope 21, Interactions of biogeochemical cycles in grassland ecosystems, New York, John Wiley, pp. 247–69.
4. Carlsen, L., Skytte Jensen, B. et Nilsson, K. (1984). Basic geochemical research for migration studies. The migration chemistry of technetium. Contract CCE No. 194-81-6 WASDK, Topical Report, 21 pp.
5. Cataldo, D. A., Wildung, R. E. et Garland, R. T. (1976). Technetium accumulation, fate and behaviour in plants. Proceedings of Symposium on the Environmental Chemistry and Cycling Process, Augusta (Georgia), pp. 538–49.