Dear All,
In response to a previous request, I was sent two
papers concerning the validation of the MacReflex system. One was by
Harrison et al (1993) and the other was un-referenced.
The paper that is un-referenced is titled
A.3 Validation of Macreflex optical measurement system.

it comes under a sub-section of

Validation of Testing Apparatus
on page 109 of an unknown journal

I am writing to request that either the person who sent
me the paper in question, or anybody else who is familiar with this
paper to contact me and inform me of the appropriate reference so
that I may include it in my literature review.

Many Thanks In Advance
Jonathan Bursnall