Encyclopaedias / dictionaries are alphabetically arranged reference works for terms used in individual or several scientific disciplines. They help you to gain an overview of a topic, define a term or find keywords for your search.
Electronic reference works, sorted according to subject area, can be found on the University Library website.
Entire volume: Liu, L., & Özsu, M. T. (Eds.). (2018). Encyclopedia of Database Systems. Springer. https://doi.org/10.1007/978-1-4614-8265-9 Contribution from the volume:
Hastings, J. T., & Hill, L. L. (2018). Georeferencing. In L. Liu & M. T. Özsu (Eds.), Encyclopedia of Database Systems (pp. 1616–1620). Springer. https://doi.org/10.1007/978-1-4614-8265-9_181