2145-9444 2145-9444 S2145-94442021000100003 10.14482/zp.34.370.71 Spain 00 06 2021 00 06 2021 34 3 21 1997 2002 2018 1947 1993 2014 2018 4 2017 2013 1989 1990 1999 Cinade 2018 1992 1999 1987 1987 1984 1979 1982