
Copyright and CC BY 4.0
Authors retain copyright in work published by HPJ and grant the journal the non-exclusive rights needed to publish, distribute and preserve the version of record.
Unless a different notice appears on an article, HPJ uses the Creative Commons Attribution 4.0 International licence (CC BY 4.0).
Third-party source extracts, translations, images, manuscripts, archival materials, datasets and software remain subject to any separate copyright, licence or agreement identified in the article. Authors must secure necessary permissions and state restrictions clearly.