@article{
  author = {shafiee, nafiseh, shajari, mahdi},
  title = {Key Management in Digital Right Management Systems for Offline Mode},
  journal = {Journal of Information and Communication Technology},
  year = {2019},
  volume = {7},
  issue = {23},
  pages = {79-88},
  doi = {},
  url = {https://rimag.ir/fa/Article/1637}
}