docbook-maven-plugin doesn't support non-latin symbols

Please see attached docbook and generated pdf files.

Configuration:

<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>docbook-maven-plugin</artifactId>
<version>1.0.0-alpha-2-SNAPSHOT</version>
<executions>
<execution>
<phase>pre-site</phase>
<goals>
<goal>transform</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>