1889-836X 1889-836X S1889-836X2019000200006 10.4321/s1889-836x2019000200006 España 00 06 2019 00 06 2019 11 2 72 73 1 2011 32 5 5 283-6 2 2004 1249-67 3 2012 4 4 4 141-4