Open access resources are accessible without any barriers, so the ROAD interface as well as the search and display functionalities take back some features accessible to subscribing users.

- ROAD search pages are limited to ISSN records describing open access resources,

- The results pages and the ISSN records are viewed from the ISSN portal,

- A ROAD logo indicates that the resource described is in open access.

- As a ROAD free user, you can access functionalities reserved to subscribing users:

  • cartographic search at the level of the city of publication,
  • advanced search with 17 indexes, notably by type of open access resource, instead of the basic 4 indexes available for free users,
  • complete ISSN records, because these records describe and give access to open access resources.

[See also section 3.3. How to use the advanced search?]