共 50 条
- [41] FLUCTUATIONS OF ATMOSPHERIC CARBON-14 CONCENTRATIONS DURING PAST CENTURY PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1971, 321 (1544): : 105 - &
- [49] TECHNIQUE FOR DIRECT COUNTING OF CARBON-14 OR TRITIUM IN BIOLOGICAL-FLUIDS REVUE EUROPEENNE D ETUDES CLINIQUES ET BIOLOGIQUE, 1972, 17 (07): : 715 - &
- [50] USE OF CARBON-14 AS A SECONDARY COUNTING STANDARD FOR SULPHUR-35 INTERNATIONAL JOURNAL OF APPLIED RADIATION AND ISOTOPES, 1971, 22 (01): : 41 - &