• DOI http://dx.doi.org/10.18177/sym.2015.55.fr.10885
  • PDF https://www.jstor.org/stable/26574416

  • DOI http://dx.doi.org/10.18177/sym.2015.55.fr.10883
  • PDF https://www.jstor.org/stable/26574418

  • DOI http://dx.doi.org/10.18177/sym.2015.55.fr.10882
  • PDF https://www.jstor.org/stable/26574413

  • DOI http://dx.doi.org/10.18177/sym.2015.55.sr.10881
  • PDF https://www.jstor.org/stable/26574396

  • DOI http://dx.doi.org/10.18177/sym.2015.55.rev.10880
  • PDF https://www.jstor.org/stable/26574405