Engelstein, S., & Niekerk, C. Introduction: Violence, Culture, Aesthetics: Germany 1789-1938 / Stefani Engelstein. Carl Niekerk. Contemplating violence : critical studies in modern German culture.(2011).

Engelstein, Stefani, and Carl Niekerk. "Introduction: Violence, Culture, Aesthetics: Germany 1789-1938 / Stefani Engelstein. Carl Niekerk." Contemplating Violence : Critical Studies in Modern German Culture.(2011) .

Engelstein, Stefani, and Carl Niekerk. "Introduction: Violence, Culture, Aesthetics: Germany 1789-1938 / Stefani Engelstein. Carl Niekerk." Contemplating Violence : Critical Studies in Modern German Culture.(2011), .