handle single ISSN

diff --git a/lib/Reference/Retrieve/PubMed.pm b/lib/Reference/Retrieve/PubMed.pm
index 0ecc842ee1d068839004117d5a0336e09811a77b..d1de4e9c20a68ec1d7c275f3e348edcc8674bb09 100644 (file)
--- a/lib/Reference/Retrieve/PubMed.pm
+++ b/lib/Reference/Retrieve/PubMed.pm
@@ -362,6 +362,9 @@ sub _fix_medline_journal($$$;){
               $journal{lc($2)} = $3;
          }
   }
               $journal{lc($2)} = $3;
          }
   }

+     if (ref $ref->{JrXml}{Serial}{ISSN} ne 'ARRAY') {
+         $ref->{JrXml}{Serial}{ISSN} = [$ref->{JrXml}{Serial}{ISSN}];
+     }

      my $print_issn = $ref->{JrXml}{Serial}{ISSN}[0]{IssnType} eq 'Print' ? 0 : 1;
      my @journal_entry =
          (title       => $ref->{JrXml}{Serial}{Title},
      my $print_issn = $ref->{JrXml}{Serial}{ISSN}[0]{IssnType} eq 'Print' ? 0 : 1;
      my @journal_entry =
          (title       => $ref->{JrXml}{Serial}{Title},