Fundamental Properties of Ofpe/WN9 Stars from Ultraviolet HST Spectra1 Pasquali, A. ; Schmutz, W. ; Leitherer, C. ; Nota, A. ; Hubeny, I. ; Langer, N. ; Drissen, L. ; Robert, C. Abstract Publication: Science with the Hubble Space Telescope - II Pub Date: 1996 Bibcode: 1996swhs.conf..386P