R. W. Hoyle (Letters, April 28) is right: Agricultural History does not illustrate my point that the draft listings in the European Reference Index for the Humanities reflect a "white, male, traditional and Eurocentric bias". But that does not invalidate the point.
How the gradings were reached across 32 countries with differing cultures and historical practices is a mystery. Nor is it explained how journals were assessed by those who do not speak the language in which they were written. The process is deeply flawed.
June Purvis Portsmouth University