"Journal für die reine und angewandte Mathematik (Crelles Journal)", 2001.533 (2001): 1-236. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/crll.2001.2001.issue-533/issue-files/crll.2001.2001.issue-533.xml

Journal für die reine und angewandte Mathematik (Crelles Journal) (2001), 2001(533), pp. 1-236. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/crll.2001.2001.issue-533/issue-files/crll.2001.2001.issue-533.xml

Journal für die reine und angewandte Mathematik (Crelles Journal). 2001. 2001(533): 1-236. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/crll.2001.2001.issue-533/issue-files/crll.2001.2001.issue-533.xml