All Zotero records for a title mentioned in at least one of the core bibliographies; there should be the oldest know title, sequential titles, and the last possible version. We are capturing the content of a source (print or electronic) that had been mentioned in a core bibliography. that has changed its title, format, or publisher. The records might have the status of original, alive, asleep, sold, lost, or zombie. When a source has NOT changed its title, format, or publisher, then that source is still alive, but not a Zombie, however, it still is a ZombieList entry.
Historical Business Collections
What to do with historic business sources for Librarians, Archivists, Historians, and Publishers