Mouton, Christopher A; Powers, James D; Romano, Daniel M; Guo, Christopher; Bednarz, Sean; O'Connell, Caolionn RAND Corporation 2015 Pehmeäkantinen kirja
Mills, Patrick; Mane, Muharrem; Kuhn, Kenneth; Narayanan, Anu; Powers, James D.; Buryk, Peter; Eckhause, Jeremy M.; Drew, John G RAND 2017 Pehmeäkantinen kirja