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Guides & Tutorial, Pao-Yue Kong Library, The Polytechnic University of Hong Kong

Open Access: OA Archiving

This guide provides information and resources in open access and scholarly publishing.

Self-archiving in OA Repositories

Depositing a copy of your publication in OA repositories is another way to share your work. OA repositories include institutional repository and subject-specific repositories. Be aware that different repositories may adopt different copyright policies. Check OA Copyright for more information.

Institutional OA Repository

PolyU Institutional Research Archive (PIRA) is an online platform that actively collects and disseminates the research and scholarly outputs created by the PolyU community. 

Visit this guide to learn more about PIRA and how to deposit works in PIRA.

Subject-specific OA Repositories

Owned and operated by Cornell University, provides e-print archive and distribution service in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance and statistics.
PubMed Central (PMC) is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine.
Social Science Research Network (SSRN) is devoted to the rapid worldwide dissemination of social science research and is composed of a number of specialized research networks in each of the social sciences.
CogPrints is an electronic archive for self-archive papers in the areas of Psychology, Neuroscience, Linguistics, Computer Science, Philosophy, Biology, Medicine, Anthropology, etc.

To search for more OA repositories, visit OpenDOAR (Directory of Open Access Repositories, an authoritative directory of academic open access repositories).

Publishers usually make distinctions between three primary versions of a manuscript: the Pre-Print, the Post-Print and the Published version. Not all versions are allowed to be shared online depending on publishers' copyright and self-archiving policies. For details, refer to Publishers' Policies on Self-archiving tab.

Here is a comparison between the three versions of a publication.

Pre-Print "pre-print" is any version prior to peer review and publication, usually the version submitted to a journal.

"post-print" or "accepted manuscript" is any version approved by peer review (with modifications based on reviewers' comments) but before the publisher’s copy editing and formatting.

PolyU Institutional Research Archive accepts the deposit of post-print (final accepted manuscript).

Published version

A "published" version is the final formatted, published version.

Most publishers DO NOT allow this version to be self-archived, while some allow - given that an embargo period is set (usually 6-24 months after publishing). 

(Reference: Open Access Overview by Peter Suber)  

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Deposit Your Work in PIRA

Publisher's and Funder's OA Policies

The SHERPA databases help you find out the funders' policies on OA publishing and archiving as well as publishers' policies on OA archiving.