Liebeck, Martin W. and Gary M. Seitz. "Subgroups of exceptional algebraic groups which are irreducible on an adjoint or minimal module" Journal of Group Theory, 7.3 (2006): 347-372. Retrieved 22 May. 2013, from doi:10.1515/jgth.2004.012

Liebeck, M. & Seitz, G. (2006). Subgroups of exceptional algebraic groups which are irreducible on an adjoint or minimal module. Journal of Group Theory, 7(3), pp. 287-420. Retrieved 22 May. 2013, from doi:10.1515/jgth.2004.012

Liebeck, Martin W. and Gary M. Seitz. 2006. Subgroups of exceptional algebraic groups which are irreducible on an adjoint or minimal module. Journal of Group Theory. 7(3): 287-420. Retrieved 22 May. 2013, from doi:10.1515/jgth.2004.012