Robertson, R. (1999). Enlightened and Romantic views of the ghetto: David Friedländer versus Heinrich Heine / Ritchie Robertson. Ghetto Writing : traditional and eastern Jewry in German-Jewish literature from Heine to Hilsenrath.

Robertson, Ritchie. "Enlightened and Romantic Views of the Ghetto: David Friedländer Versus Heinrich Heine / Ritchie Robertson." Ghetto Writing : Traditional and Eastern Jewry in German-Jewish Literature from Heine to Hilsenrath 1999.

Robertson, Ritchie. "Enlightened and Romantic Views of the Ghetto: David Friedländer Versus Heinrich Heine / Ritchie Robertson." Ghetto Writing : Traditional and Eastern Jewry in German-Jewish Literature from Heine to Hilsenrath, 1999.