Authors
T A King
UCLA, Institute of Geophys. and Planetary Phys., University of California, 5881 Slichter Hall, Los Angeles, CA 90095-1567, USA
C C Harvey
CESR -CNRS, B.P. 4346, 9, avenue du Colonel Roche, 31028 Toulouse CEDEX 4, France
P J Richards
Rutherford Appleton Laboratory, Chilton, Oxon OX11 0QX, United Kingdom
