@InCollection {dfs-chap13,
    author = {S. {De Capitani di Vimercati} and S. Foresti and P. Samarati},
    editor = {J.R. Vacca},
    booktitle = {Cloud Computing Security: Foundations and Challenges},
    title = {Specification and Enforcement of Access Policies in Emerging Scenarios},
    publisher = {CRC Press},
    month = {August},
    year = {2016}
}