After downloading enwiki-20160601-pages-articles-multistream.xml.bz2 I found out that the data for "Authority control" is empty in the dump, but filled for the corresponding pages in en.wikipedia.org as example:
For the article Anarchism in the dump I find:
<title>Anarchism</title>
<ns>0</ns>
<id>12</id>
<revision>
<id>721573764</id>
<parentid>719202660</parentid>
<timestamp>2016-05-22T19:25:12Z</timestamp>
[...]
-->
{{Anarchism}}
{{Philosophy topics}}
{{Political culture}}
{{Political ideologies}}
{{Social and political philosophy}}
{{Aspects of Capitalism}}
{{Portal bar|Anarchism|Social and political philosophy|Social movements}}
{{Good article}}
{{Authority control}} <------------- No data in dump, but on en.wikipedia.org web page (see below)
[[Category:Anarchism| ]]
[[Category:Political culture]]
On the web page the Authority control is filled:
[...]
BlackFlagSymbol.svg Anarchism portal P derecho.svg Social and political philosophy portal Peace sign.svg Social movements portal
Authority control
LCCN: sh85004812 GND: 4001887-8 HDS: 17399 NKC: ph118417
Categories:
[...]
In the dump for the germany wikipedia the equivalent field "Normdaten" is filled in the dump like on the webpage:
<title>Alan Smithee</title>
[...]
Referenzen
<references />
{{Normdaten|TYP=p|GND=123396956}} <--------- O.K. and identical to de.wikipedia.org
[[Kategorie:Fiktive Person|Smithee, Alan]]