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Alexander V. Karzanov. Half-integral Flows in a Planar Graph with Four Holes. Discrete Applied Mathematics, 56(2-3):267-295, 1995. [doi]
Possibly Related PublicationsThe following publications are possibly variants of this publication: Paths and Metrics in a Planar Graph with Three or More Holes. I. MetricsAlexander V. Karzanov. JCT, 60(1):1-18, 1994. [doi] Paths and Metrics in a Planar Graph with Three or More Holes. II. PathsAlexander V. Karzanov. JCT, 60(1):19-35, 1994. [doi]
The following publications are possibly variants of this publication: