SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals Filed: 2012-02-09 AccNo: 0000080255-12-000111 Size: 33 KB 网页链接
SC 13G - Statement of acquisition of beneficial ownership by individuals Filed: 2011-12-30 AccNo: 0000921895-11-002438 Size: 179 KB 网页链接
10-K - Annual report [Section 13 and 15(d), not S-K Item 405] Filed: 2011-12-21 AccNo: 0000904979-11-000020 Size: 5 MB 网页链接