Acknowledgements

We gratefully acknowledge the financial support of the following institutions in the development of data-envelopes:

• Dutch Ministry of Education, Culture and Science (OCW): Research programme ‘Werk aan Uitvoering’
• Dutch Research Council (NWO): Research Programme ‘Research Infrastructure’ (project number 175.2019.003)
• European Research Infrastructure Heritage Science (E-RIHS.nl): ‘Accessing Context’ project (reference number 1598042)