1 Information Services, University of Edinburgh, Edinburgh EH8 9YL, UK.
2 Political Settlements Research Programme, School of Law, University of Edinburgh, Edinburgh EH8 9YL, UK.
3 School of Informatics, University of Edinburgh, Edinburgh EH8 9YL, UK.
4 Political Settlements Research Programme, School of Law, University of Edinburgh, Edinburgh EH8 9YL, UK. Electronic address: christine.bell@ed.ac.uk.