A geographically distributed enterprise simulation system. - Heidi R. Ammerlahn; Michael E. Goldsby; Michael M. Johnson; David M. Nicol (Future Gener. Comput. Syst., 2000)

Detection of nuclear material at border crossings using motion correlation. - David M. Nicol; Rose Tsang; Heidi R. Ammerlahn; Michael M. Johnson (WSC, 2006)