Use this field when you have NOT checked off the SFX Available box.

Some material may not be available via SFX. This material may include: a small newsletter of a local organization, an individual who has posted articles on their site, documents and presentations (government documents), institutional repositories, etc.

Copy and paste the URL from the item into this field.

NOTE: if a DOI (document object identifier) or handle URI (uniform resources identifier) is available, use one of these. These are regarded as permanent and stable identifiers for materials.
DOI prefix: