Why permanent links?
Beginning in July 2018, the library will change over several core web services to new and improved platforms. As a result, some links that have been created to library content will no longer work after July 31.
Do I need to update all durable links?
No - some durable link formats will need to be updated by July 31, while the remaining links will continue to work into the future. You may choose to transition these links to the new permanent link formats to further enhance their longevity. Durable link formats which will continue to work into the future are formatted to connect users to the publisher/provider; examples of links formatted like this are:
What links do I need to update before July 31, 2018?
All links with the following URLs should be replaced before July 31, 2018:
Links with the following URLs should be replaced before August 31, 2018:
What are the new permanent links?
To prepare for this change, the library has created a new permanent linking service. This service allows you to generate, on-the-fly, a link to a library resource that will remain stable regardless of any future changes to the platforms that content may be hosted on. These links are based on three types of standard numbers that are assigned to most of the resources we provide: PubMed ID (PMID) for journal articles, ISBN for books, and ISSN for journals and other serials.
Once you've generated the link, you should no longer need to update it in the future if the library's service platforms change -- we simply update the service on our end to point to the most appropriate location for you to retrieve the item. And if at some point we no longer have direct access to the item linked (see e.g. https://himmelfarb.gwu.
How can I create permanent links?
We have created permanent link shortcuts for PubMed articles, e-books, and e-journals. These links use a standard number from the item to create a link: the PMID for PubMed articles, the ISBN for books, and the ISSN for journals. The link structure for each is similar:
PubMed article example: https://himmelfarb.gwu.edu/
E-Book example: https://himmelfarb.gwu.edu/isbn/9780071843249
Journal example: https://himmelfarb.gwu.edu/
What do I do if I can't find the standard number associated with the resource I want to link to, or if it doesn't have one?
Depending on the resource, there may be other ways to create a stable link. Consult the E-Journal links and E-Book links pages of this guide to create a link to the publisher/provider or contact firstname.lastname@example.org for assistance.
When can I start replacing our links with the new permanent links?
You can start using the new linking structure in April 2018.
We recommend using permanent links described above whenever possible as these links will require the least maintenance for you. If permanent links are not possible, you may still compose durable links to connect users directly to content on publisher/provider websites.
A durable link is composed in two steps:
1. Obtain a direct link to the desired article or book.
2. Append the proxy prefix to the beginning of the direct link; this step provides secure off-campus access to resources.
Example: Durable Link via Publisher/Provider
To create a link to this article: Abate, L., Gomes, A., & Linton, A. (2011). Engaging students in active learning: use of a blog and audience response system. Medical Reference Services Quarterly, 30(1), 12-18. doi:10.1080/02763869.2011.540206.
1. Direct link to article:
2. Proxy prefix + direct link:
Durable links are hyperlinks to electronic resources (e.g. journal articles, books and book chapters, databases, etc.) which are available as part of Himmelfarb Library's online collections. Durable links allow faculty to connect students to required and recommended readings and do not require faculty to obtain copyright permission.
If you prefer to post files of copyrighted works in Blackboard, please consult:
Most electronic resources available via Himmelfarb Library provide 'unlimited users' access, however some resource permit a fixed number of concurrent users. To ensure adequate access for your students, please check with Laura Abate (email@example.com or 202-994-8570) or Ruth Bueter (firstname.lastname@example.org or 202-994-9756) prior to assigning a reading to fifteen or more students.
We will create durable links for you!
Library staff are ready to help! Send us your syllabus and we will:
Please contact: email@example.com