Akavia, Adi, Dan Feldman, and Hayim Shaul. 2019. “Secure Data Retrieval on the Cloud: Homomorphic Encryption Meets Coresets”. IACR Transactions on Cryptographic Hardware and Embedded Systems 2019 (2):80-106. https://doi.org/10.13154/tches.v2019.i2.80-106.