D. Rumble

The impact and recovery of asteroid 2008 TC3

S. N. Milam, H. H. Hsieh, D. Numan, 2009, Nature.

The relative abundances of resolved l2 CH 2 D 2 and 13 CH 3 D and mechanisms controlling isotopic bond ordering in abiotic and biotic methane gases

Edward D. Young, B. Sherwood Lollar, Tullis C. Onstott, 2016 .