1607-4041 1607-4041 S1607-40412019000100133 10.24320/redie.2019.21.e34.2143 Mexico Spain 00 00 2019 00 00 2019 21

2016 2015 3a 2013 18 1446-55 2015 12 44-7 2015 2016 2011 29 2 2 115-22 2014 2008 40 3 3 286-90 1969 3 360-414 2015 Andorra la Vella 2007 87-96 2007 1999 62-92 2009 50 6 6 1-12 2004 153-67 2017 2014 4 2 2 137-56 1999