If you make use of ontoPortal-astro.eu for preparing a research communication or you want to cite the portal, use the following reference:
Cecconi, B., et al. (2025) OntoPortal-Astro, a semantic artefact catalogue for astronomy. Astronomy & Computing, 53, 100991, doi:10.1016/j.ascom.2025.100991. ArXiV:2504.12897. hal:hal-05237630
For publications related to AgroPortal or BioPortal, check the references here
If you need to cite the underlying OntoPortal framework, which is based in the AgroPortal distribution, please cite:
Jonquet, C., et al. (2018) AgroPortal: A vocabulary and ontology repository for agronomy. Computers and Electronics in Agriculture, 144, 126-143. doi:10.1016/j.compag.2017.10.012. hal:lirmm-01679502.
In order to cite the OntoPortal Alliance and the generic OntoPortal technology use:
Jonquet, C., et al. (2023) Ontology Repositories and Semantic Artefact Catalogues with the OntoPortal Technology. ISWC 2023 - 22nd International Semantic Web Conference, Nov 2023, Athens, Greece. pp. 38-58, doi:10.1007/978-3-031-47243-5_3. hal:hal-04088537