Groups with the same orders of Sylow normalizers as the Mathieu groups. Khosravi, Behrooz, Khosravi, Behnam (2005) International Journal of Mathematics and Mathematical Sciences
Groups with the same prime graph as an almost sporadic simple group. Khosravi, Behrooz (2009) Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]