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- [1] CHANGES IN (CO2)-C-13/(CO2)-C-12 ISOTOPE RATIO IN ATMOSPHERE OF ENCLOSED CHAMBERS DURING PHOTOSYNTHESIS SOVIET PLANT PHYSIOLOGY, 1977, 24 (03): : 529 - 530
- [8] INFLUENCE OF METABOLIC FUEL ON THE C-13/C-12 RATIO OF BREATH CO2 BIOMEDICAL MASS SPECTROMETRY, 1984, 11 (11): : 557 - 561