@Book {ghlr-dpmcbt2018,
    editor = {J. Garcia-Alfaro and J. Herrera-Joancomarti and G.
Livraga and R. Rios},
    booktitle = {Data Privacy Management, Cryptocurrencies and Blockchain Technology (Proc. of DPM and CBT 2018)},
    publisher = {Springer},
    address = {Barcelona, Spain},
    month = {September},
    day = {6-7},
    year = {2018}
}