Sperlich, P., Schaefer, H., Fletcher, S. E. M., Guillevic, M., Lassey, K., Sapart, C. J., Röckmann, T., & Blunier, T. (2015). Carbon isotope ratios suggest no additional methane from boreal wetlands during the rapid Greenland Interstadial 21.2. Global Biogeochemical Cycles, 29(11), 1962-1976. doi:10.1002/2014GB005007.