Elham Azhir Nima Jafari Navimipour Mehdi Hosseinzadeh 0001 Arash Sharifi Aso Mohammad Darwesh Query optimization mechanisms in the cloud environments: A systematic study. 2019 32 Int. J. Commun. Syst. 8 https://doi.org/10.1002/dac.3940 https://www.wikidata.org/entity/Q128294239 db/journals/ijcomsys/ijcomsys32.html#AzhirNHSD19