{"identifier":"nobleid:/w1/20260525/2CF9DA82","arkIdentifier":"ark:/48914/w1/20260525/2CF9DA82","version":1,"workTitle":"The 13C/12C Isotope Ratio in Circumstellar Envelopes","workType":"Journal Article","authors":"G. R. Knapp, Kar Man Chang, M. Morris","description":null,"workUrl":null,"existingDoi":"10.1007/978-94-009-5428-1_23","createdAt":"2026-05-25T21:54:19.538944Z","canonicalUrl":"https://nobleid.org/ark:/48914/w1/20260525/2CF9DA82.v1"}