code: public List<ItemReference> getItemReference(int itemId) {
  		return getResourceFactory().getApiResource(
  				"/item/" + itemId + "/reference/").get(
  				new GenericType<List<ItemReference>>() {
  				});
  	}
docs: Returns the items that have a reference to the given item. The references
  are grouped by app. Both the apps and the items are sorted by title.
  
  @param itemId
  The id of the item
  @return The references to the given item