@inproceedings{zhou_liu_duan_ao_chan_katagiri_castillo_xu_2009, 
  title={Some Sufficient Conditions for Graphs to Be (g,f,n)-Critical Graphs}, 
  DOI={10.1063/1.3078124}, 
  publisher={AIP}, 
  author={Zhou and Liu and Duan and Ao and Chan and Katagiri and Castillo and Xu}, 
  year={2009}
  }