When adding an item using a DOI, Zotero (5.0.32) will not accept anything with the `reference-book` (i.e. encyclopedia entry) type. For example, https://doi.org/10.1093/odnb/9780192683120.013.19839 and https://doi.org/10.1093/benz/9780199773787.article.b00192562, which both resolve, come up in Zotero with the 'could not find a record' error. Similarly, visiting https://search.crossref.org/?q=alexander+neckam&type=Reference and attempting to save the DOIs using the browser extension will not work.

CrossRef support clarify that `reference-book` is intended to be used for an entire encyclopedia or the like, whilst `reference-entry` is intended for an individual encyclopedia article. Much of the problem, then, is really with the metadata, but nonetheless `reference-book` entries shouldn't be coming up as not found.

I would further suggest that `reference-entry` be imported as an encyclopedia article rather than a book chapter.