By Pighizzini G.   in Information and Computation

ISSN:0890-5401|165|1|1-13

Academic Press‎(2001)‎

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By Geffert V.   Mereghetti C.   Pighizzini G.   in Theoretical Computer Science

ISSN:0304-3975|295|1|189-203

Elsevier‎(2003)‎

Access to resources Favorite 9.534929