https://docs.backdropcms.org/api/backdrop/core%21modules%21entityreference%21views%21entityreference.views.inc/function/entityreference_field_views_data_views_data_alter/1
function entityreference_field_views_data_views_data_alter | Documentation
functionentityreferencefieldviewsdata
https://iddevnet.dhewm3.org/quake4/LevelEditor_EntityReference.html
LevelEditor EntityReference - Quake 4 SDK Documentation
sdk documentationentityreferencequake