edited by H. Kanamori and by E. Boschi. edited by A.M. Dziewonski and by E. Boschi. edited by Y. Sawaragi and H. Akashi. edited by E. Camatini and T. Kester. edited by Barbara E. Borg. edited by David A. Gautschi. edited by E. Alarcon, C. A. Brebbia. edited by E. K. Duursma and R. Dawson. edited by C. H. Dash and H. E. H. Jones. edited by E. David Crawford, Thomas A. Borden.