'org.wicketstuff:ddcalendar:1.4.21'
<dependency>
<groupId>org.wicketstuff</groupId>
<artifactId>ddcalendar</artifactId>
<version>1.4.21</version>
</dependency>
<dependency org="org.wicketstuff" name="ddcalendar" rev="1.4.21"/>
"org.wicketstuff", "ddcalendar", "1.4.21"