1. Florence Early English Newspapers Corpus (FEEN). https://cqpweb.lancs.ac.uk.
2. Lancaster Newsbooks Corpus. https://ota.bodleian.ox.ac.uk/repository/xmlui/handle/20.500.12024/2531.
3. Zurich English Newspapers Corpus. Version 1.0 (ZEN). https://www.es.uzh.ch/en/Subsites/Projects/zencorpus.html.