The abstracts of the presentations for the 23rd General Assembly accepted by the corresponding Session Conveners are published in:
Annales Geophysicae, Supplement to Volume 16, 1998
Part 1: Society Symposia, Solid Earth Geophysics & Geodesy, C11 - C408
Part 2: Hydrology, Oceans & Atmosphere, C427 - C808
Part 3: Space & Planetary Sciences, C827 - C1051
Part 4: Nonlinear Geophysics & Natural Hazards, C1067 - C1219