2448-7678 2448-7678 S2448-76782007000200075 Mexico 00 12 2007 00 12 2007 36 100 75 88

1995 2008 Goffs 2005 2008 Heylighen 1997 1998 2000 1995 1993 1995 1998 2001 2002 1981 2001 405-14 1974 186 645646 2001 1990 2007 1971 20 167-92 2004 Stategor 1995 347 2000 7 1996 41 1 1 3-12 2007 Universidad de Oviedo