All material is protected by copyright and other intellectual property rights, and duplication or sale of all or part of any of this data collection is not permitted, except that material may be duplicated by you for your research use or educational purposes in electronic or print form. You must obtain permission for any other use. Electronic or print copies may not be offered, whether for sale or otherwise.
You are welcome to use the corpus for academic non-commercial research. If you use data derived from the corpus, you must acknowledge this by citing the corpus, either in its electronic or CD-ROM version, for instance, in the following form:
Mittendorf, Ingo; and Willis, David. 2004. A historical corpus of the Welsh language. Electronic resource, http://www.cilr.cam.ac.uk/hcwl/index.htm, University of Cambridge.
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