@article{feige_goldwasser_lovász_safra_szegedy_1996, 
  title={Interactive proofs and the hardness of approximating cliques}, 
  volume={43}, 
  DOI={10.1145/226643.226652}, 
  publisher={Association for Computing Machinery (ACM)}, 
  author={Feige and Goldwasser and Lovász and Safra and Szegedy}, 
  year={1996}, 
  month={Mar}
  }