'org.webjars.bower:polymer:0.9.0-rc.1'
<dependency>
<groupId>org.webjars.bower</groupId>
<artifactId>polymer</artifactId>
<version>0.9.0-rc.1</version>
</dependency>
<dependency org="org.webjars.bower" name="polymer" rev="0.9.0-rc.1"/>
"org.webjars.bower", "polymer", "0.9.0-rc.1"