'ch.qos.logback:logback-parent:0.9.21'
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-parent</artifactId>
<version>0.9.21</version>
</dependency>
<dependency org="ch.qos.logback" name="logback-parent" rev="0.9.21"/>
"ch.qos.logback", "logback-parent", "0.9.21"