<dependency>
  <groupId>com.github.grgrzybek</groupId>
  <artifactId>tomcat-slf4j-logback</artifactId>
  <version>1.2.0</version>
</dependency>

'com.github.grgrzybek:tomcat-slf4j-logback:jar:1.2.0'

<dependency org="com.github.grgrzybek" name="tomcat-slf4j-logback" rev="1.2.0">
  <artifact name="tomcat-slf4j-logback" type="jar" />
</dependency>

@Grapes(
@Grab(group='com.github.grgrzybek', module='tomcat-slf4j-logback', version='1.2.0')
)

compile 'com.github.grgrzybek:tomcat-slf4j-logback:1.2.0'

[com.github.grgrzybek/tomcat-slf4j-logback "1.2.0"]

libraryDependencies += "com.github.grgrzybek" % "tomcat-slf4j-logback" % "1.2.0"