@article{PinheiroChagasWoodKnopsetal.2014,
  author    = {Pedro Pinheiro-Chagas and Guilherme Wood and Andr{\´e} Knops and Helga Krinzinger and Jan Lonnemann and Isabella Starling-Alves and Klaus Willmes and Vitor Geraldi Haase},
  title     = {In how many ways is the approximate number system sssociated with exact calculation?},
  journal   = {PLoS One},
  volume    = {9},
  number    = {(11):e111155},
  doi       = {10.1371/journal.pone.0111155},
  year      = {2014},
}