ROSAT All-Sky Survey Observations of the Hyades Cluster Stern, R. A. ; Schmitt, J. H. H. M. ; Rosso, C. ; Pye, J. P. ; Hodgkin, S. T. ; Stauffer, J. R. Abstract Publication: Cool Stars, Stellar Systems, and the Sun Pub Date: 1992 Bibcode: 1992ASPC...26..100S