"Journal für die reine und angewandte Mathematik (Crelles Journal)", 1958.199 (1958): 1-220. Retrieved 23 May. 2013, from http://www.degruyter.com/view/j/crll.1958.issue-199/issue-files/crll.1958.issue-199.xml

Journal für die reine und angewandte Mathematik (Crelles Journal) (1958), 1958(199), pp. 1-220. Retrieved 23 May. 2013, from http://www.degruyter.com/view/j/crll.1958.issue-199/issue-files/crll.1958.issue-199.xml

Journal für die reine und angewandte Mathematik (Crelles Journal). 1958. 1958(199): 1-220. Retrieved 23 May. 2013, from http://www.degruyter.com/view/j/crll.1958.issue-199/issue-files/crll.1958.issue-199.xml