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In 1983, Bouchet proved that every bidirected graph with a nowhere-zerointeger-flow has a nowhere-zero 216-flow, and conjectured that 216 could bereplaced with 6. This paper shows that for cyclically 5-edge-connectedbidirected graphs that number can be replaced with 8.

Nowhere-zero 8-flows in cyclically 5-edge-connected, flow-admissible signed graphs