^Julian Schaap and Pauwke Berkers. "Grunting Alone? Online Gender Inequality in Extreme Metal Music" in Journal of the International Association for the Study of Popular Music. Vol.4, no.1 (2014) p. 101
^Kahn-Harris, Keith. Extreme metal : music and culture on the edge [Online-Ausg.]. Oxford [u.a.]: Berg. 2007. ISBN 1-84520-399-2.