"Journal of Inverse and Ill-Posed Problems", 7.6 (1999): 487-589. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/jiip.1999.7.issue-6/issue-files/jiip.1999.7.issue-6.xml

Journal of Inverse and Ill-Posed Problems (1999), 7(6), pp. 487-589. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/jiip.1999.7.issue-6/issue-files/jiip.1999.7.issue-6.xml

Journal of Inverse and Ill-Posed Problems. 1999. 7(6): 487-589. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/jiip.1999.7.issue-6/issue-files/jiip.1999.7.issue-6.xml