@Article {dfls-isj2021,
    author = {S. {De Capitani di Vimercati} and S. Foresti and
G. Livraga and P. Samarati},
    title = {Towards Owners' Control in Digital Data Markets},
    journal = {IEEE Systems Journal (ISJ)},
    volume = {15},
    number = {1},
    pages = {1299-1306},
    month = {March},
    year = {2021}
}