9: Scritti scelti (1918-1933) - Bonhoeffer, Dietrich. (OLS)http://ftis/name/52074; Conci, Alberto. (OLS)http://ftis/name/62388; Green, Clifford. (OLS)http://ftis/name/79096; Pfeifer, Hans. (OLS)http://ftis/name/79095 (Opere di Dietrich Bonhoeffer, 2008)