We have published the OPTIMETA proposal in the journal Research Ideas and Outcomes. The publication is open access now and can be used as a citation for the project. More importantly, the document demonstrates the project partner's commitment to Open Science principles by sharing a successful project description in its entirety.
Hauschke, Christian; Nüst, Daniel, Cordts, Anette; Lilienthal, Svantje (2021): OPTIMETA – Strengthening the Open Access publishing system through open citations and spatiotemporal metadata. Research Ideas and Outcomes 7: e66264. https://doi.org/10.3897/rio.7.e66264