-<a href="/SEX.html">Stream EXchange</a>
-and
-<a href="http://fex.rus.uni-stuttgart.de/usecases/anonymous.html">anonymous usage</a>.
-
+<a href="$TA$/SEX.html">Stream EXchange</a> and
+<<
+ my $a = "/usecases/anonymous.html";
+ print "<a href=\"";
+ print "http://fex.rus.uni-stuttgart.de" unless -s "$docdir$a";
+ print "$a\">anonymous usage</a>";
+>>
+## <hr>
+## <pre>
+## <<
+## #while (($v,$vv) = each %ENV) { printf "%s = %s\n",$v,$vv if $vv !~ /\n/ }
+## #foreach $v (qw'AKEY USER ID') { printf "$v = %s\n",$ENV{$v} }
+## '';
+## >>
+## </pre>