James P. Kennett, Kevin G. Cannariato, Ingrid L. Hendy, Richard J. Behl (2000), Carbon Isotopic Evidence for Methane Hydrate Instability During Quaternary Interstadials, Science 288 (5463: Apr 7), 128–133 DOI: 10.1126/science.288.5463.128
Todd Sowers (2006), Late Quaternary Atmospheric CH4 Isotope Record Suggests Marine Clathrates Are Stable, Science 311 (5762: Feb 10), 838–840 DOI: 10.1126/science.1121235
Hinrich Schaefer, Michael J. Whiticar, Edward J. Brook, Vasilii V. Petrenko, Dominic F. Ferretti, Jeffrey P. Severinghaus (2006), Ice Record of 13C for Atmospheric CH4 Across the Younger Dryas-Preboreal Transition, Science, 313 '(5790: Aug 25) 1109–1112 DOI: 10.1126/science.1126562