Much material on the, "The Russian National Liberation Army, " in the classic by Christopher Sampson, "Blowback: America's Postwar Recruitment of Nazis, " and, "German rule in Russia, 1941-1945; a study of occupation policies. Author Dallin, Alexander.
Brother, I assume, Alexander, prominant Kremlinologist. David, Menshevik emigre.
Labor camps in U.S.S.R by David J Dallin (published in 1947 by Yale.)
Reexamining the Soviet Experience: Essays in Honor of Alexander Dallin by David Holloway (Editor)