Goldstein, D., B., Stern, S. A., Crider, D. H., Gladstone, G. R., Durda, D., D., Asphaug, E., Larignon, B., Varghese, P. L., and Trafton, L. M., “Free molecular simulations of vapor dynamics following a lunar impact,” in Rarefied Gas Dynamics, Proceedings of the 25th International Symposium on Rarefied Gas Dynamics, ed., M. Ivanov & A. Rebrov, Publishing House of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 2007.