@INPROCEEDINGS{silvaUrbcomp13,
  author = {Silva, Thiago H. and Vaz de Melo, Pedro O. S. and Almeida, Jussara
	M. and Salles, Juliana and Loureiro, Antonio A. F.},
  title = {A comparison of Foursquare and Instagram to the study of city dynamics
	and urban social behavior},
  booktitle = {Proc. ACM SIGKDD Int.\ Workshop on Urban Computing\ (UrbComp'13)},
  year = {2013},
  address = {Chicago, USA}
}