scientific article; zbMATH DE number 1953893

zbMath1027.68048MaRDI QIDQ4415078

Yasuo Kawahara, Hitomi Okuma

Publication date: 28 July 2003

Full work available at URL: http://link.springer.de/link/service/series/0558/bibs/2561/25610152.htm

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

Mathematics Subject Classification ID

Database theory (68P15) Categories of spans/cospans, relations, or partial maps (18B10)

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