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- [5] THE C-12/C-13 RATIO OF THE CARBON STAR V460 CYGNI REVISITED ASTROPHYSICAL JOURNAL, 1984, 283 (01): : 188 - 191
- [6] C-12/C-13 RATIO AND CHEMICAL COMPOSSTION OF XYLITES ZEITSCHRIFT FUR ANGEWANDTE GEOLOGIE, 1971, 17 (07): : 278 - &
- [7] ABUNDANCE RATIO OF C-12 TO C-13 IN CARBON STARS PROCEEDINGS OF THE JAPAN ACADEMY, 1976, 52 (06): : 296 - 299
- [9] C-12/C-13 RATIO AS AN INDICATOR OF AIR POLLUTION ISOTOPES AND RADIATION TECHNOLOGY, 1971, 8 (04): : 381 - &