Superconducting wires and fractional flux.

@article{SdeMelo1996SuperconductingWA,
  title={Superconducting wires and fractional flux.},
  author={CA S{\'a}deMelo},
  journal={Physical review. B, Condensed matter},
  year={1996},
  volume={53 18},
  pages={12276-12283}
}