pandoc/test/command/docbook-bibliography.md

```
% pandoc -f docbook -t native --quiet
<bibliodiv>
<title>Document References</title>
<bibliomixed>
<bibliomisc><anchor xml:id="refTheFirst" xreflabel="[1]"/>[1] First reference</bibliomisc>
</bibliomixed>
<bibliomixed>
<bibliomisc><anchor xml:id="refTheSecond" xreflabel="[2]"/>[2] Second reference</bibliomisc>
</bibliomixed>
<bibliomixed>
<bibliomisc><anchor xml:id="refTheThird" xreflabel="[3]"/>[3] Third reference</bibliomisc>
</bibliomixed>
</bibliodiv>
^D
[ Header 1
  ( "", [], [] )
  [ Str "Document", Space, Str "References" ]
, Para
  [ Span
    ( "refTheFirst", [], [] ) []
  , Str "[1]"
  , Space
  , Str "First"
  , Space
  , Str "reference"
  ]
, Para
  [ Span
    ( "refTheSecond", [], [] ) []
  , Str "[2]"
  , Space
  , Str "Second"
  , Space
  , Str "reference"
  ]
, Para
  [ Span
    ( "refTheThird", [], [] ) []
  , Str "[3]"
  , Space
  , Str "Third"
  , Space
  , Str "reference"
  ]
]
```