bootstrap-4.0.0-alpha.6-sources.jar

<dependency>
	<groupId>org.webjars.bower</groupId>
	<artifactId>bootstrap</artifactId>
	<version>4.0.0-alpha.6</version>
	<classifier>sources</classifier>
	<type>java-source</type>
</dependency>

org.webjars.bower:bootstrap:4.0.0-alpha.6