• DOI http://dx.doi.org/10.18177/sym.2013.53.rev.10205
  • PDF https://www.jstor.org/stable/26564924

  • DOI http://dx.doi.org/10.18177/sym.2013.53.fr.9813
  • PDF https://www.jstor.org/stable/26564926

  • DOI http://dx.doi.org/10.18177/sym.2013.53.rev.9697
  • PDF https://www.jstor.org/stable/26564921

  • DOI http://dx.doi.org/10.18177/sym.2013.53.sr.9576
  • PDF https://www.jstor.org/stable/26564914

  • DOI http://dx.doi.org/10.18177/sym.2013.53.sr.9575
  • PDF https://www.jstor.org/stable/26564915