Not a DOI
The resolution service at https://doi.org resolves DOIs. You have attempted to resolve premium-books, which is not a DOI.
premium-books may be a Handle (DOIs are a special sort of Handle). If premium-books is a valid Handle you should be able to resolve it at https://hdl.handle.net.
WHAT CAN I DO NEXT?
- If you believe this DOI is valid, you may report this error using the form here.
- You can try to search again from DOI.ORG homepage
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