Has anyone had any problems working with a node containing an unusually large number of nodereferences? By "unusually large," I mean ~1000, though maybe this is just considered "usually large."

When editing a node with ~1000 nodereferences I'm getting the WSoD because PHP is running out of memory (even when it's jacked all the way up to 4GB). Has anyone else had a similar experience? If so, did you find a workaround?

More generally, is there an established maximum number of nodereferences on a single node (a vague range would suffice) that Drupal can capably manage?

Thanks!