Bradt, H.V. and Levine, A.M. and Morgan, E.H. and Remillard, R.A. and Swank, J.H. and Dingus, B.L. and Holt, S.S. and Jahoda, K.M. and Rotschild, R.E. and Gruber, D.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.