1. Snellman, J.V.: Kootut teokset 1–24. Ministry of Education and Culture, Helsinki (2002)
2. Suomen kansallisbiografia 1–10. Suomalaisen Kirjallisuuden Seura, Helsinki (2003)
3. Aylett, R.S., Bental, D.S., Stewart, R., Forth, J., Wiggins, G.: Supporting serendipitous discovery. In: Digital Futures (Third Annual Digital Economy Conference), 23–25 October 2012, Aberdeen, UK (2012)
4. ter Braake, S., Fokkens, A., Sluijter, R., Declerck, T., Wandl-Vogt, E. (eds.): BD2015 Biographical Data in a Digital World 2015. In: CEUR Workshop Proceedings, vol. 1399 (2015)
5. Doerr, M.: The CIDOC CRM–an ontological approach to semantic interoperability of metadata. AI Mag. 24(3), 75–92 (2003)