• DOI http://dx.doi.org/10.18177/sym.2014.54.rpt.10680
  • PDF https://www.jstor.org/stable/26574376

  • DOI http://dx.doi.org/10.18177/sym.2014.54.rpt.10678
  • PDF https://www.jstor.org/stable/26574373

  • 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