my $query = new CGI;
my $title = $query->param('title_filter');
my $ISSN = $query->param('ISSN_filter');
-my $routing = $query->param('routing');
+my $routing = $query->param('routing')||C4::Context->preference("RoutingSerials");
my $searched = $query->param('searched');
my $biblionumber = $query->param('biblionumber');