Roos, L. (2003). "God wants it!": The ideology of martyrdom of the Hebrew Crusuade chronicles and its Jewish and Christian background. Uppsala Universitet.

Roos, Lena. "God Wants It!": The Ideology of Martyrdom of the Hebrew Crusuade Chronicles and Its Jewish and Christian Background. Uppsala: Uppsala Universitet, 2003.

Roos, Lena. "God Wants It!": The Ideology of Martyrdom of the Hebrew Crusuade Chronicles and Its Jewish and Christian Background. Uppsala Universitet, 2003.