Irregular frequency.
Vol. 3: William McNally, Sr., at the Kimberly Press, 1982.
Publication resumed by Brepols, 2004, and continued by The Centre for Celtic Studies, University of Aberdeen.
Vols. 3/1–3/2: edited by Howard Meroney, assistant editor David Dumville.
Vols. 4– (2004–): edited by K. R. Dark, David Dumville, Thomas O’Loughlin, Paul Russell.
Vols. 3/1–3/2: edited by Howard Meroney, assistant editor David Dumville.
Vols. 4– (2004–): edited by K. R. Dark, David Dumville, Thomas O’Loughlin, Paul Russell.