0188-6649 0188-6649 S0188-66492009000100123 10.21555/top.v36i1.129 Germany 00 00 2009 00 00 2009 36 123 141

1984 2005 2001 2003 1952 1981 2004 2001 72 298 298 2002 81-96 2004 6 2006