Physical Review Letters Physical review letters 128(21), 215702 (2022). doi:10.1103/PhysRevLett.128.215702 Ranieri, U, Conway, L J, Donnelly, M-E, Hu, H, Wang, M, Dalladay-Simpson, P, Pena-Alvarez, M, Gregoryanz, E, Hermann, A & Howie, R T 2022, ' Formation and Stability of Dense Methane-Hydrogen Compounds ', Physical Review Letters, vol. 128, no. 21, 215702, pp. 1-6 . https://doi.org/10.1103/PhysRevLett.128.215702