@article{queryexpansionviastructuralmotifsin,
  title = {Query Expansion via structural motifs in Wikipedia Graph},
  author = {Guisado-Gámez Joan and Prat-Pérez Arnau and Larriba-Pey Josep Lluís},
  year = {2016},
  eprint = {1602.07217},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1602.07217v2},
}