<dependency>
  <groupId>gemma</groupId>
  <artifactId>gemma</artifactId>
  <version>1.28.4</version>
  <type>pom</type>
</dependency>

'gemma:gemma:pom:1.28.4'

<dependency org="gemma" name="gemma" rev="1.28.4">
  <artifact name="gemma" type="pom" />
</dependency>

@Grapes(
@Grab(group='gemma', module='gemma', version='1.28.4')
)

compile 'gemma:gemma:1.28.4'

libraryDependencies += "gemma" % "gemma" % "1.28.4"

[gemma "1.28.4"]