• DOI http://dx.doi.org/10.18177/sym.2015.55.fr.10983
  • PDF https://www.jstor.org/stable/26574414

  • DOI http://dx.doi.org/10.18177/sym.2015.55.sr.10889
  • PDF https://www.jstor.org/stable/26574402

  • DOI http://dx.doi.org/10.18177/sym.2015.55.sr.10890
  • PDF https://www.jstor.org/stable/26574393

  • DOI http://dx.doi.org/10.18177/sym.2015.55.rev.10886
  • PDF https://www.jstor.org/stable/26574403