 system("perl patron2graphml.pl A_la_une1.txt");
 system("\"/cygdrive/c/Program\ Files/Altova/AltovaXML2006/AltovaXML.exe\" -xslt1 GraphML2Pajek.xsl -in  patron-graphml.xml -out A_la_une1.net");
 system ("unix2dos A_la_une1.net");
 system("perl patron2graphml.pl A_la_une2.txt");
 system("\"/cygdrive/c/Program\ Files/Altova/AltovaXML2006/AltovaXML.exe\" -xslt1 GraphML2Pajek.xsl -in  patron-graphml.xml -out A_la_une2.net");
  system ("unix2dos A_la_une2.net");
 system("perl patron2graphml.pl A_la_une3.txt");
 system("\"/cygdrive/c/Program\ Files/Altova/AltovaXML2006/AltovaXML.exe\" -xslt1 GraphML2Pajek.xsl -in  patron-graphml.xml -out A_la_une3.net");
  system ("unix2dos A_la_une3.net");