article published in 1985

scholarly article by R. Brownsword published in January 1985

article published in 1983

article

article published in 1982

article published in 1981

article published in 1987

scientific article published in January 1981

scientific article published in January 1983

scientific article published in January 1985

scholarly article by Roger Brownsword & John Hines published September 1993 in Antiquaries Journal

article published in 1991

scientific article published in 1985