my $result = GetOptions(
'encoding:s' => \$encoding,
'file:s' => \$input_file,
'match|match-bibs:s' => \$match,
'add-items' => \$add_items,
my $result = GetOptions(
'encoding:s' => \$encoding,
'file:s' => \$input_file,
'match|match-bibs:s' => \$match,
'add-items' => \$add_items,