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Wagner, M.J.M.; Dittrich-Hannen, B.; Synal, H.-A.; Suter, M.; Schotterer, U. (1996). Increase of 129I in the environment. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 113(1-4), pp. 490-494. Elsevier 10.1016/0168-583X(95)01348-2
Ivy-Ochs, S.D.; Schlüchter, Christian; Kubik, P.W.; Dittrich-Hannen, B.; Beer, J. (1994). Exposure ages greater than ca. 5 million years for the upper surface at Table Mountain and the Sirius Group at Mt. Fleming, Antarctica Villigen: Paul Scherrer Institut