"Journal of Group Theory", 6.3 (2003): 271-413. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/jgth.2003.6.issue-3/issue-files/jgth.2003.6.issue-3.xml

Journal of Group Theory (2003), 6(3), pp. 271-413. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/jgth.2003.6.issue-3/issue-files/jgth.2003.6.issue-3.xml

Journal of Group Theory. 2003. 6(3): 271-413. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/jgth.2003.6.issue-3/issue-files/jgth.2003.6.issue-3.xml