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1 Diabaté S., Strack S., "Organically bound tritium", 65(6):698-712, 1993
2 Alvarez L. W., Cornog R., "Helium and Hydrogen of Mass 3", 56(6):613-, 1939
3 Sano Y., Wakita H., Sheng X., "Atmospheric helium isotope ratio", 22(4):177-81, 1988
4 Macmahon D., "Half-life Evaluations for 3H, 90Sr, and 90Y", 64 10-11:1417-9, 2006
5 Fahr M., Hill K., "Triple-Point Temperatures of 20 Ne and 22 Ne", 32(1-2):173-88, 2011
6 Griffin P. J, Grynia E., "Helium in Natural Gas - Occurrence and Production", 1(2):163-215, 2016
7 Evans L., Lupton J., "The atmospheric helium isotope ratio: Is it changing?", 31(13), 2004
8 Chang T.-L., Zhao M.-T., Li W.-J., "Absolute isotopic composition and atomic weight of dysprosium", 207(1-2):13-7, 2001
9 Balonov M. I., Moskalev Yu I, Likhtarev I. A., "The metabolism of 3H compounds and limits for intakes by workers", 47(5):761- 73, 1984
10 Clarke W. B., Top Z, Jenkins W. J., "Determination of tritium by mass spectrometric measurement of 3He", 27(9):515-22, 1976
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