• DOI http://dx.doi.org/10.18177/sym.2014.54.rpt.10677
  • PDF https://www.jstor.org/stable/26574371

  • DOI http://dx.doi.org/10.18177/sym.2014.54.rpt.10676
  • PDF https://www.jstor.org/stable/26574372

  • DOI http://dx.doi.org/10.18177/sym.2014.54.rpt.10675
  • PDF https://www.jstor.org/stable/26574370

  • DOI http://dx.doi.org/10.18177/sym.2014.54.rpt.10674
  • PDF https://www.jstor.org/stable/26574374

  • DOI http://dx.doi.org/10.18177/sym.2014.54.rpt.10673
  • PDF https://www.jstor.org/stable/26574375