A -approximation for subcubic 2EC using circulations and obliged edges

@article{Boyd2016AF,
  title={A -approximation for subcubic 2EC using circulations and obliged edges},
  author={Sylvia C. Boyd and Yao Fu and Yu Sun},
  journal={Discrete Applied Mathematics},
  year={2016},
  volume={209},
  pages={48-58}
}