Ch. C. Wu

The dust around R Coronae Borealis type stars

A. Holm, B. Donn, J. Hecht, 1984 .

ANS spectrophotometry - The bright X-ray binaries Hercules X-1 /HZ Herculis/ and Cygnus X-1 /HDE 226868/

A. Holm, J. Eaton, M. Milgrom, 1982 .

SPATIALLY RESOLVED ULTRAVIOLET SPECTROSCOPY OF THE LINER GALAXY NGC-3998

A. Filippenko, K. Mason, E. Puchnarewicz, 1992 .