In October 2001 he worked as an AHRB (now: AHRC) Research Fellow at the University of Wales Centre for Advanced Welsh and Celtic Studies, where he was on the Project 5 - Celtic identity project, among others, creating an Atlas for Celtic Studies and cooperated on the Encyclopedia Celtic Culture - A Historical Encyclopedia.
Im Oktober 2001 ging er als AHRB (nun: AHRC) Research Fellow an das University of Wales Centre for Advanced Welsh and Celtic Studies, wo er im Projekt 5 - Celtic identity unter anderem an der Erstellung eines Atlas for Celtic Studies und der Enzyklopädie Celtic Culture - A Historical Encyclopedia mitarbeitete.