6e8d9f28da82fb753c11a3909695366d7373dff4 HCN_forsterite_tetramerzation.pdf 7f7c2bd5fc89384c55252365da34c4c289073aa4 cosmic-silicate-surfaces-catalizing-prebiotic-reactions-atomistic-modeling-on-the-polymerization-of-hcn.pdf