2448-6558 2448-6558 S2448-65582019000200659 10.24201/nrfh.v67i2.3536 Spain 00 12 2019 00 12 2019 67 2 659 668 2012 65-97 2010 1963 2015 1992 1970 1 79-98 2006 2013 2018 2016 243-70 1966 1993