Ridgway, S. and Wilson, R.W. and Begelman, M.C. and Bender, P. and Burke, B.F. and Cornwell, T. and Drever, R. and Dyck, H.M. and Johnston, K.J. and Kibblewhite, E.
Margon, B. and Canizares, C. and Catura, R.C. and Clark, G.W. and Fichtel, C.E. and Friedman, H. and Giacconi, R. and Grindlay, J.E. and Helfand, D.J. and Holt, S.S.