• Algorithmic problems in twisted groups of Lie type; Henrik Bäärnhielm, 2007, PhD thesis; pdf
• Recognising the Suzuki groups in their natural representations; Henrik Bäärnhielm; J. Algebra 300 (1), 171-198, 2006; e-print
• The Schreier-Sims algorithm for matrix groups; Henrik Bäärnhielm; (2004) e-print;