Paper from 8. Symp. on Measuring Techniques for Transonic and Supersonic Flow in Cascades and Turbomachines Genoa (IT), 24-25 Oct 1985SIGLEAvailable from British Library Document Supply Centre- DSC:7623.47(OUEL--1624/86) / BLDSC - British Library Document Supply CentreGBUnited Kingdo