@revista_internacional{290,
  author = {Luis Martínez and Jie Lu},
  title = {A Humble Tribute to 50 Years of Fuzzy Sets},
  year = {2016},
  journal = {International Journal of Computational Intelligence Systems},
  volume = {9},
  pages = {1-2},
  month = {26 Apr 2016},
  publisher = {Taylor and Francis},
  issn = {1875-6891},
  url = {http://www.tandfonline.com/doi/abs/10.1080/18756891.2016.1180815},
  doi = {10.1080/18756891.2016.1180815},
}