Two Modes of Pulsation in the Rapidly Rotating O9.5 Dwarf, HD 93521 Reid, A. H. N. ; Bohlender, D. ; Bolton, C. T. ; Fullerton, A. W. ; Howarth, I. D. ; Manz, C. ; Smith, K. C. ; Townsend, R. H. D. Abstract Publication: IAU Colloq. 155: Astrophysical Applications of Stellar Pulsation Pub Date: 1995 Bibcode: 1995ASPC...83..309R