Interesting study by Wikimedia Foundation into the availability of Wikipedia's references across different subjects. Sad to see that Chemistry ranks very low, with a high percentage of pay-walled references.
Should also link to the twitter thread:


@solarchemist @bstacey
For Chemistry, the intimate links with the industry (pharmaceutical, pesticides) might be a problem.
Some of my chemist colleagues, at a public University, were our only collaborators who refused to disclose the composition of a collection of chemical compounds used for research in a scientific paper. And they found this 'natural'...

@solarchemist @cosminribo I'm surprised the "closed" fractions for physics and mathematics are so high. We've been doing the online preprint repository thing for 25 years now.

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