Posner, A. and Bothmer, V. and Thompson, B.J. and Kunow, H. and Heber, B. and M"uller-Mellin, R. and Lazarus, A.J. and Szabo, A. and Mikić, Z. and Linker, J.A.
Belcher, J.W. and Slavin, J.A. and Armstrong, T.P. and Farquhar, R.W. and Akasofu, S.I. and Baker, D.N. and Cattell, C.A. and Cheng, A.F. and Chupp, E.L. and Clark, P.E.