W. Sparks

The Supermassive Black Hole of M87 and the Kinematics of Its Associated Gaseous Disk

A. Marconi, A. Capetti, P. Crane, 1997 .

The NICMOS Polarimetric Calibration

STScI, University of Sheffield, W. Sparks, 2006, astro-ph/0601541.

APJ, ACCEPTED Preprint typeset using LATEX style emulateapj v. 6/22/04 THE OUTBURST OF HST-1 IN THE M87 JET

D. E. Harris, W. Junor, E. S. Perlman, 2005 .

Discovery of two distant type Ia supernovae in the Hubble Deep Field-North with the advanced camera for surveys

Garth D. Illingworth, Adam G. Riess, M. Franx, 2003 .

The fading optical counterpart of GRB 970228, 6 months and 1 year later

A. S. Fruchter, E. Palazzi, C. Kouveliotou, 1998 .