<dependency>
  <groupId>org.zkoss.zk</groupId>
  <artifactId>zk</artifactId>
  <version>3.6.3</version>
</dependency>

implementation 'org.zkoss.zk:zk:3.6.3'

implementation("org.zkoss.zk:zk:3.6.3")

libraryDependencies += "org.zkoss.zk" % "zk" % "3.6.3"

@Grapes(
  @Grab(group='org.zkoss.zk', module='zk', version='3.6.3')
)

<dependency org="org.zkoss.zk" name="zk" rev="3.6.3" />

[org.zkoss.zk/zk "3.6.3"]

'org.zkoss.zk:zk:jar:3.6.3'