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roadoi  

Find Free Versions of Scholarly Publications via Unpaywall
View on CRAN: Click here


Download and install roadoi package within the R console
Install from CRAN:
install.packages("roadoi")

Install from Github:
library("remotes")
install_github("cran/roadoi")

Install by package version:
library("remotes")
install_version("roadoi", "0.7.3")



Attach the package and use:
library("roadoi")
Maintained by
Najko Jahn
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2017-04-06
Latest Update: 2024-09-26
Description:
This web client interfaces Unpaywall , formerly oaDOI, a service finding free full-texts of academic papers by linking DOIs with open access journals and repositories. It provides unified access to various data sources for open access full-text links including Crossref and the Directory of Open Access Journals (DOAJ). API usage is free and no registration is required.
How to cite:
Najko Jahn (2017). roadoi: Find Free Versions of Scholarly Publications via Unpaywall. R package version 0.7.3, https://cran.r-project.org/web/packages/roadoi. Accessed 07 Aug. 2026.
Previous versions and publish date:
(2026-07-09 06:52), 0.1 (2017-04-06 07:42), 0.2 (2017-05-17 16:03), 0.3 (2017-07-17 11:17), 0.4.1 (2017-10-30 12:16), 0.4 (2017-10-02 12:46), 0.5.1 (2018-05-21 18:02), 0.5.2 (2018-08-07 16:00), 0.5 (2018-05-02 13:53), 0.6 (2019-09-15 13:10), 0.7.1 (2021-07-29 14:20), 0.7.2 (2022-03-04 12:40), 0.7 (2021-01-20 21:10)
Other packages that cited roadoi R package
View roadoi citation profile
Other R packages that roadoi depends, imports, suggests or enhances
Complete documentation for roadoi
Functions, R codes and Examples using the roadoi R package
Some associated functions: oadoi_fetch . oadoi_fetch_ . roadoi-package . roadoi_addin . 
Some associated R codes: oadoiAddins.R .  Full roadoi package functions and examples
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