by Jenniskens, P, Shaddad, M.H, Numan, D, Elsir, S, Kudoda, A.M, Zolensky, M.E, Le, L, Robinson, G.A, Friedrich, J.M, Rumbles, D, Steeles, A, Chesley, S.R, Fitzsimmons, A, Duddy, S, Hsieh, H.H, Ramsay, G, Brown, P.G, Edwards, W.N, Tagliaferri, E, Boslough, M.B, Spalding, R.E, Dantowitz, R, Kozubal, M, Pravec, P, Borovicka, J, Charvat, Z, Vaubaillon, J, Kuiper, J, Albers, J, Bishop, J.L, Mancinelli, R.L, Sandford, S.A, Milam, S.N, Nuevo, M, Worden, S. P
Published in Nature (London) (26.03.2009)

by Hunter, T.F., Rumbles, D., Stock, M.G.
Published in Chemical physics letters (1977)