https://www.epo.org/en/service-support/faq/myepo-services/myepo/legal-interactive-platform-lip/why-dont-i-get-links-source

Why don’t I get links to the source texts sometimes?

We designed Legal Interactive Platform (LIP) to encourage the LLM (Large Language Model) it uses to provide links to the source texts in its responses.  

However, we can’t force the LLM to provide links or control how it generates responses.

We strongly advise users who want to validate responses to always ask LIP to include source links (if the tool hasn't done this).