• DOI https://doi.org/10.18177/sym.2016.56.itm.11125
  • PDF https://www.jstor.org/stable/26574421

  • DOI http://dx.doi.org/10.18177/sym.2016.56.fr.11124
  • PDF https://www.jstor.org/stable/26574452

  • DOI http://dx.doi.org/10.18177/sym.2016.56.itm.11120

  • DOI http://dx.doi.org/10.18177/sym.2016.56.fr.11118
  • PDF https://www.jstor.org/stable/26574453

  • DOI http://dx.doi.org/10.18177/sym.2016.56.fr.11117
  • PDF https://www.jstor.org/stable/26574448