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Goemans, Michel, Olver, Neil ORCID: 0000-0001-8897-5459, Rothvoß, Thomas and Zenklusen, Rico (2012) Matroids and integrality gaps for hypergraphic steiner tree relaxations. In: STOC 2012 - 44th ACM Symposium on Theory of Computing, 2012-05-19 - 2012-05-22, New York, United States, USA.