Peri+ is a service provided by the National Library of Finland in cooperation with Kopiosto. The service contains old scientific journals.
The journals subject to copyright are available at libraries that have signed the contract.
Journals in the service (freely available online until 1920):
- Lakimies 1903 - 1999
- Suomi 1841 - 1938
- Historiallinen aikakauskirja 1903 - 1999