@conference {icwsm2018,
    title = {Online Petitioning Through Data Exploration and What We Found There: A Dataset of Petitions from Avaaz.org},
    booktitle = {12th International AAAI Conference on Web and Social Media},
    year = {2018},
    publisher = {The AAAI Press},
    author = {Pablo Arag{\'o}n and Diego S\'aez-Trumper and Miriam Redi and Scott A.~Hale and Vicen\c{c} G{\'o}mez and Andreas Kaltenbrunner}
}