Open Access Week

Open Access lingo

Tuesday 25 Oct 16
The two kinds of Open Access publishing

Open Access is about providing free access to scientific literature - and still more research is released Open Access.

There are two kinds of Open Access publishing:

Green Open Access is when you parallel publish your work in an open archive or repository like DTU Orbit You simply upload a full-text version of your accepted, peer-reviewed article (also known as the post-print) to the repository and the article eventually becomes freely available to everybody.

DTU endorses Green Open Access and encourages all researchers to deposit their post-prints in DTU Orbit. Most publishing houses allow some form of Open Access self-archiving.
Always remember to hold on to your post-print and send it to

Golden Open Access is when you pay APCs to make your article available Open Access. The article will then become freely accessible to all via the publishing house.

APC stands for Article Processing Charge; it is a fee that the publisher charges to make your article available Open Access. Some publishers offer discounts on APCs to DTU researchers as a part of DTU Library’s subscriptions and sometimes DTU Library will have negotiated other forms of OA discounts on behalf of DTU researchers.

DTU Library recommends publishing Golden Open Access only in Open Access journals i.e. journals that are not subscription-based (see Golden Open Access options offered by traditional subscription-based journals involve the risk of “double dipping” and are discouraged as DTU risks paying twice: i.e. for subscribing to the journal and for publishing content in the journal via APCs. Since most publishers allow researchers to parallel-publish post-prints Open Access for free (Green Open Access), Golden Open Access in traditional journals is, strictly speaking, unnecessary.

Read more:


Self-archiving in DTU Orbit:
Send your post-prints to

The post-print is also known as the final author manuscript. The post-print has been peer-reviewed and accepted for publication but still lacks formal publisher layout. The intellectual content is identical to the published version that will eventually appear in the actual journal. 

A pre-print is a draft version of a scientific article. It has not been peer-reviewed, accepted or indeed published and is not necessarily identical to the final published article.

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