Inglis, G N, Rohrssen, M, Kennedy, E M, Crouch, E M, Raine, J I, Strogen, D P, Naafs, B D A, Collinson, M E & Pancost, R D 2021, ' Terrestrial methane cycle perturbations during the onset of the Paleocene–Eocene Thermal Maximum ', Geology, vol. 49, no. 5, pp. 520-524 . https://doi.org/10.1130/G48110.1