Alexander V. Karzanov. Half-integral Flows in a Planar Graph with Four Holes. Discrete Applied Mathematics, 56(2-3):267-295, 1995. [doi]
@article{Karzanov95,
title = {Half-integral Flows in a Planar Graph with Four Holes},
author = {Alexander V. Karzanov},
year = {1995},
doi = {10.1016/0166-218X(94)00090-Z},
url = {http://dx.doi.org/10.1016/0166-218X(94)00090-Z},
tags = {planar graph, data-flow, graph-rewriting, rewriting},
researchr = {https://researchr.org/publication/Karzanov95},
cites = {0},
citedby = {0},
journal = {Discrete Applied Mathematics},
volume = {56},
number = {2-3},
pages = {267-295},
}