Precision epoch of reionization studies with next-generation CMB experiments by Calabrese, E, Hložek, R, Battaglia, N, Bond, J, De Bernardis, F, Devlin, M, Hajian, A, Henderson, S, Hil, J, Kosowsky, A, Louis, T, McMahon, J, Moodley, K, Newburgh, L, Niemack, M, Page, L, Partridge, B, Sehgal, N, Sievers, J, Spergel, D, Staggs, S, Switzer, E, Trac, H, Wollack, E