Broekmans, M. A. T. M., Nijland, T. G., & Ben H. Jansen, J. (1994). Are stable isotopic trends in amphibolite to granulite facies transitions metamorphic or diagenetic?; an answer for the Arendal area (Bamble Sector, southeastern Norway) from mid-Proterozoic carbon-bearing rocks.
American Journal of Science,
294(9), 1135–1165.
https://doi.org/10.2475/ajs.294.9.1135