Non-Fickian diffusion and the accumulation of methane bubbles in deep-water sediments D. S. Goldobin, N. V. Brilliantov, J. Levesley, M. A. Lovell, C. A. Rochelle, P. D. Jackson, A. M. Haywood, S. J. Hunter and J. G. Rees Eur. Phys. J. E, 37 5 (2014) 45 Published online: 30 May 2014 DOI: 10.1140/epje/i2014-14045-x