EPMReferenceLink is Object to Master (i.e. Drawing to PRT/ASM) . whenever drawing is getting linked to PRT, windchill will not store revision for PRT in DB.
For Business Use case I want to get the version and iteration for PRT from EPMASStored to derive lifecycle state for PRT from DRW revision.
Are you looking to do this via Java code, SQL or a Report Builder qml? It should be possible since the EPMASStored is a baseline. It not only fixes versions, it is to the iteration level. This might present a problem to you if you are looking to get the version of the related PRT object. That object may have been iterated or even revised since that baseline was created.
Actually I am trying to Revision, Iteration of PRT only because we want to know at which specific rev, iteration of PRT the drawing was linked