Perturbative approach to higher derivative and nonlocal theories

@article{Cheng2001PerturbativeAT,
  title={Perturbative approach to higher derivative and nonlocal theories},
  author={Taiwang Cheng and Pei-Ming Ho and Mao-Chuang Yeh},
  journal={Nuclear Physics},
  year={2001},
  volume={625},
  pages={151-165}
}

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