Spitzer Infrared Spectrograph (IRS) Observations of the Redshift 3.91 Quasar APM 08279+5255, B. T. Soifer, Vassilis Charmandaris, B. R. Brandl, Lee Armus, P. N. Appleton, M. J. Burgdorf, D. Devost, T. L. Herter, Sarah J.U. Higdon, James L. Higdon, J. R. Houck, C. R. Lawrence, P. W. Morris, H.I. Teplitz, K. I. Uchida, J. van Cleve, D. W. Weedman
James L. Higdon