Bartosz Lipinski Wojciech Mazurczyk Krzysztof Szczypiorski Improving Hard Disk Contention-Based Covert Channel in Cloud Computing. 100-107 2014 IEEE Symposium on Security and Privacy Workshops https://doi.org/10.1109/SPW.2014.24 https://doi.ieeecomputersociety.org/10.1109/SPW.2014.24 conf/sp/2014w db/conf/sp/spw2014.html#LipinskiMS14