共 50 条
- [37] TECHNIQUE FOR DIRECT COUNTING OF CARBON-14 OR TRITIUM IN BIOLOGICAL-FLUIDS REVUE EUROPEENNE D ETUDES CLINIQUES ET BIOLOGIQUE, 1972, 17 (07): : 715 - &
- [38] USE OF CARBON-14 AS A SECONDARY COUNTING STANDARD FOR SULPHUR-35 INTERNATIONAL JOURNAL OF APPLIED RADIATION AND ISOTOPES, 1971, 22 (01): : 41 - &