1405-9193 1405-9193 S1405-91932017000200265 10.22201/iij.24484881e.2017.37.11459 Chile Chile Chile 00 12 2017 00 12 2017 37 265 291

2010 23 1 1 79-102 2008 301 y 302 2002 81-7 2010 81 1998 20 367-78 1992 2013 11 2 2 25 y ss 2009 36-43 2011 271-89 2008 1 1 41-70 2003 256-9 2000 159-80 2007 1 1 43-74 2000 11a 369-78 2000 2003 4a 1999 203 y 204 2007 2007 209-13 2002 6 6 2003 1998 594 2011 33-56 2002 351 y ss 2006 217-20 2005 29-53 2003 33 33 27 y 28