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0001266454-06-000491-index.html | 2006-11-28 17:32:31 | |
0001266454-06-000491.txt | 2006-11-28 17:32:31 | |
sigma_8k-112806.htm | 30133 | 2006-11-28 17:32:31 |
sigma_ex9901.htm | 56234 | 2006-11-28 17:32:31 |