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Algebra universalis > 2016 > 75 > 3 > 301-330
Topology and its Applications > 2011 > 158 > 17 > 2264-2278
Theoretical Computer Science > 2000 > 234 > 1-2 > 109-133
Algebra universalis > 2016 > 75 > 3 > 301-330
Topology and its Applications > 2011 > 158 > 17 > 2264-2278
Theoretical Computer Science > 2000 > 234 > 1-2 > 109-133