First ultraviolet spectropolarimetry of hot supergiants - Taylor, M; Code, A D; Nordsieck, K H; Anderson, C M; Babler, B L; Bjorkmaan, K S; Clayton, G C; Magalhães, Antonio Mário; Mead, M R; Schulte-Ladbeck, R E; Whitney, B A (Astrophysical Journal, 1991)