Remote access to e-resources

You can access our electronic resources (e-books, journals, etc.) even when you are not at CERN. See how to use and configure remote access to our e-resources:


>With the EzProxy URL

In order to access online resources (= articles, e-books, databases) made available by the Library from outside CERN:

  1. URLs must be prefixed by:
  2. When you access the resources via the EzProxy, you need to login with your CERN credentials. 

As an example, to access this article: /pii/S0168900217310045 you need to modify the url as follows: /pii/S0168900217310045

NFrom the CERN Library Catalogue and SIS website

URLs of resources listed in the CERN Library Catalogue or on this website are correctly formatted with the EzProxy prefix:

Video file
Install bookmarklet for EzProxy


To simplify access, we advise you to install a bookmarklet (working on all browsers: Chrome, Safari, Firefox, Internet Explorer). The bookmarklet should be installed only once. (Javascript needs to be enabled in your browser's configuration).

  1. Create a new bookmark:
    - with the name: CERN Library proxy
    - and the URL: javascript:void(location.href=''+location.href); (make sure to copy the full URL)
  2. Go to the article or the e-book you need to access from any Google search or any other web site.
  3. Click on the 'CERN Library proxy' bookmark you created.
  4. You will be prompted to enter your CERN credentials. This will reload the page, and you will be able to access the resource.

} Zotero

If you use the Zotero extension on Firefox, no configuration is necessary. The first time you type in the EzProxy version of the URL, Zotero will remember to use it each time you visit the website. However, you will need to type it in for each new resource you access.

OBrowser extensions

These extensions enable you to convert any resource link to the EzProxy URL:

] Good to know

  • This service works for CERN computer accounts only.
  • The access will only work if the CERN Library has a subscription to the resource. Please check the availability in the CERN Library Catalogue or in our online resources.
  • Please note that URLs prefixed with EzProxy work whether you are located at CERN or accessing remotely.
  • No authentification is needed for open access resources.
  • There is a small list of publishers for which the EzProxy doesn't work: Grand RobertSIF journals. If you need to access this online content remotely, please use the  Windows Terminal Services or open a browser on LXPLUS.

_Google Scholar CASA

CASA (Campus Activated Subscriber Access) is an authentication enhancement that improves the authentication for off-campus users of Google Scholar.

This works for subscribed content (e-journals and e-books) from main publishers such as AIP, APS, Elsevier (as from July 2020), IEEE, IOP, SpringerNature, Wiley, and many others. 

How to use CASA? 

  • From a CERN IP, visit Google Scholar and find an article. If CERN has access to this article, it will show the link to the full content on the publisher's website. Google Scholar records the affiliation between your device (laptop, mobile phone, desktop, etc.) and your institution.
  • The next time you use the same device to visit Google Scholar from off-campus, Google Scholar will remember the affiliation from the first visit and access the publisher's website as if you were on a CERN IP.
  • The off-campus access is valid for a period that varies from 30 to 120 days depending on the publisher, and can be later renewed by simply visiting Google Scholar from a CERN IP. 

F Extended access (for some publishers)

Some publishers offer extended access to their content: you have continued access for up to 48 hours after leaving the institution's IP address range(s) as long as:

  • You work from the same device and browser.
  • Cookies are enabled.
  • In this context, there is no need to use EzProxy.
  • For the time being, only Elsevier (ScienceDirect) offers this possibility.
Last modified
20 March, 2023