All institutions that are members of Hellenic Academic Libraries Link have access to the electronic resources that are available through the portal of HEAL-Link. Access is allowed directly from the publishers through IP address recognition. So, username and password are not provided and are not necessary. In conclusion, all you need to have access to the electronic resources of HEAL-Link is the IP address of one of the Institutions/Members of Hellenic Academic Libraries Link.
Also, some publishers support Authentication and Authorization Infrastructure (AAI) through shibboleth software. This service enables remote access to electronic resources of HEAL-Link. Using their institutional account, the authorized users of the Institutions/Members can have access from anywhere they are to the HEAL-Link subscriptions. For more information about Authentication and Authorization Infrastructure (AAI), click here.