@misc{W2161214567,
  author = {Dan Boneh and Giovanni Di Crescenzo and Rafail Ostrovsky and Giuseppe Persiano},
  title = {Public Key Encryption with Keyword Search},
  year = {2004},
  howpublished = {Lecture notes in computer science},
  doi = {https://doi.org/10.1007/978-3-540-24676-3\_30}
}