@article {POI3:POI3158,
    author = {Arag\'on, Pablo and G\'omez, Vicen\c{c} and Kaltenbrunner, Andreas},
    title = {Detecting Platform Effects in Online Discussions},
    journal = {Policy \& Internet},
    volume = {9},
    number = {4},
    issn = {1944-2866},
    url = {http://dx.doi.org/10.1002/poi3.158},
    doi = {10.1002/poi3.158},
    pages = {420--443},
    year = {2017},
}