Does anyone know of a comparable tool for legal research (or plugin(s) that add this functionality to Zotero)? A good friend is in law school right now and has

Does anyone know of a comparable tool for legal research (or plugin(s) that add this functionality to Zotero)? A good friend is in law school right now and has really been wanting a good citation manager, but when I pointed him to Zotero it ended up being lacking due to the absence of a standardized reference number and citation info that scientific papers have.