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- [2] QUANTITATIVE ENRICHMENT OF CH4 (C-14) WITH CLUSIUS-DICKEL COLUMN FOR USE IN C-14 DATING ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-FRANKFURT, 1973, 87 (4-6): : 284 - 287
- [8] LASER ENRICHMENT OF C-14 APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1985, 37 (02): : 79 - 86
- [9] ENRICHMENT OF C-14-H4 BY THERMAL-DIFFUSION FOR USE IN RADIOCARBON DATING ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1975, A 30 (04): : 556 - 560