Kuich, Werner
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BRICS Report Series No. 42 (2001): RS-42 Rationally Additive Semirings - Articles
Rationally Additive Semirings
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BRICS Report Series No. 27 (2000): RS-27 Inductive * -Semirings - Articles
Inductive * -Semirings
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BRICS Report Series No. 21 (2002): RS-21 Formal Tree Series - Articles
Formal Tree Series
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