@article{becca_capriotti_parola_sorella_2007, 
  title={Exotic gapless spectrum induced by frustration in quantum antiferromagnets}, 
  volume={76}, 
  DOI={10.1103/physrevb.76.060401}, 
  publisher={American Physical Society (APS)}, 
  author={Becca and Capriotti and Parola and Sorella}, 
  year={2007}, 
  month={Aug}
  }