The following publications are possibly variants of this publication:
- On the Equivalence of the Bidirected and Hypergraphic Relaxations for Steiner TreeAndreas Emil Feldmann, Jochen Könemann, Neil Olver, Laura Sanità. approx 2014: 176-191 [doi]
- Hypergraphic LP Relaxations for Steiner TreesDeeparnab Chakrabarty, Jochen Könemann, David Pritchard. ipco 2010: 383-396 [doi]
- Hypergraphic LP Relaxations for Steiner TreesDeeparnab Chakrabarty, Jochen Könemann, David Pritchard. siamdm, 27(1):507-533, 2013. [doi]
- Matroids and integrality gaps for hypergraphic steiner tree relaxationsMichel X. Goemans, Neil Olver, Thomas Rothvoß, Rico Zenklusen. stoc 2012: 1161-1176 [doi]