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SEC Filings Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995 Items per page 102550 Filing date Form Description Filing Group View March 02, 2020 10-K Annual report which provides a comprehensive overview of the company for the past year Annual Filings 0000790816-20-000008.pdf 0000790816-20-000008.rtf 0000790816-20-000008.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML February 24, 2021 10-K Annual report which provides a comprehensive overview of the company for the past year Annual Filings 0000790816-21-000008.pdf 0000790816-21-000008.rtf 0000790816-21-000008.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML February 24, 2022 10-K Annual report which provides a comprehensive overview of the company for the past year Annual Filings 0000790816-22-000009.pdf 0000790816-22-000009.rtf 0000790816-22-000009.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML February 21, 2023 10-K Annual report which provides a comprehensive overview of the company for the past year Annual Filings 0000790816-23-000013.pdf 0000790816-23-000013.rtf 0000790816-23-000013.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML February 22, 2024 10-K Annual report which provides a comprehensive overview of the company for the past year Annual Filings 0000790816-24-000014.pdf 0000790816-24-000014.rtf 0000790816-24-000014.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML June 22, 2004 10-12G A general registration filing of securities pursuant to section 12(g) of the Securities Exchange Act Registration Statements 0000950116-04-001953.rtf 0000950116-04-001953.xls View HTML Pagination First page « First Previous page ‹ Previous … Page 192 Page 193 Page 194 Page 195 Page 196 Page 197 Page 198 Page 199 Current page 200 Data provided by Kaleidoscope.