@Article{Laniado2017ISF,
  author =	 "Laniado, David and Volkovich, Yana and Scellato,
                  Salvatore and Mascolo, Cecilia and Kaltenbrunner,
                  Andreas",
  title =	 "The Impact of Geographic Distance on Online Social
                  Interactions",
  journal =	 "Information Systems Frontiers",
  year =	 2017,
  issn =	 "1572-9419",
  doi =		 "10.1007/s10796-017-9784-9",
  url =		 "https://doi.org/10.1007/s10796-017-9784-9"
}