| ChemRxiv |
Open
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ChemRxiv (pronounced 'chem-archive') is a free submission, distribution and archive service for unpublished preprints in chemistry and related areas. |
| ChinaXiv |
Open
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ChinaXiv is an open repository and distribution service for scientific researchers in the field of natural science, which accepts scholarly preprints and conditionally accepts published articles. |
| Sciencepaper Online |
Open
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Sciencepaper Online is an open repository and distribution service for scientific researchers in the field of all scientific fields |
