Huang, L.; Chivulescu, A.; Allison, C.; Brailsford, G.; Brand, W. A.; Wendeberg, M.; Bollenbacher, A.; Keeling, R.; Levin, I.; Sabasch, M. et al.; Leuenberger, M.; Mukai, H.; Nakazawa, T.; Aoki, S.; Neubert, R.; Aerts-Bijma, A.; Verkouteren, M.; White, J.; Vaughn, B.; Michel, S.; Zhou, L.; Liu, L.X.: A Report of δ¹³C & δ¹⁸O Measurements in NBS 19 and NBS 18 pure CO₂: Uncertainty in Traceability of CO₂ Isotope Measurements. In: 15th IAEA/WMO meeting of CO₂ experts. Proceedings of the 15th IAEA/WMO meeting of CO₂ experts, Jena, Sept. 2009. (2011)

Brand, W. A.; Chivulescu, A.; Huang, L.; Mukai, H.; Richter, J.; Rothe, M.: Relating Air-CO₂ Isotope Ratio Determinations to VPDB using Calcite-CO₂ Mixed into CO₂-free Air. In: 14th WMO/IAEA Meeting of Experts on Carbon Dioxide, Other Greenhouse Gases, and Related Tracer Measurement Techniques. Proceedings of the 14th WMO/IAEA Meeting of Experts on Carbon Dioxide, Other Greenhouse Gases, and Related Tracer Measurement Techniques, Helsinki, Sept. 2007, Helsinki. (2009)

Wendeberg, M.; Richter, J.; Rothe, M.; Brand, W. A.: JRAS isotope reference: A generalized VPDB scale anchor for CO₂ in air? Proceedings of the 15th IAEA/WMO meeting of CO₂ experts, Jena, Sept. 2009., (2009)

Brand, W. A.; Rothe, M.; Richter, J.: Relating Air-CO₂ Isotope Ratio Determinations to VPDB using Calcite-CO₂ Mixed into CO₂-free Air. Proceedings of the 13th IAEA/WMO meeting of CO₂ experts, Boulder, Sept. 2005, Boulder., (2007)

Mukai, H.; Nakazawa, T.; Brand, W. A.; Huang, L.; Levin, I.; Allison, C.; White, J.; Leuenberger, M.; Assonov, S. S.: About disagreements in inter-comparison activities of isotope ratio measurements for CO₂. Proceedings of the 13th IAEA/WMO meeting of CO₂ experts, Boulder, Sept. 2005., (2007)

Jordan, A.; Brand, W. A.: Technical Report: MPI-BGC, Germany. Report of the 11th WMO/IAEA Meeting of Experts on Carbon Dioxide Concentration and Related Tracer Measurement Techniques (Tokyo, Japan, 25. - 28. September 2001)., (2003)

Schnabel, F.; Barry, K. E.; Eckhardt, S.; Guillemot, J.; Geilmann, H.; Kahl, A.; Moossen, H.; Bauhus, J.; Wirth, C.: Neighbourhood species richness and drought-tolerance traits modulate tree growth and delta¹³C responses to drought. (2022)