| Provider Name | Provider Code | URI |
|---|---|---|
| National Bibliography Number | nbn |
http://nbn-resolving.org/urn:nbn:fi:tkk-004781 |
| Bioregistry | bioregistry |
https://bioregistry.io/nbn:urn:nbn:fi:tkk-004781 |
| Identifiers.org | miriam |
https://identifiers.org/nbn:urn:nbn:fi:tkk-004781 |
| Name-to-Thing | n2t |
https://n2t.net/nbn:urn:nbn:fi:tkk-004781 |