High Precision Velocity Measurements of the Star Procyon - a Possible Stellar Signal Bedford, D. K. ; Chaplin, W. J. ; Davies, A. R. ; Innis, J. L. ; Isaak, G. R. ; Speake, C. C. Abstract Publication: GONG 1992. Seismic Investigation of the Sun and Stars Pub Date: January 1993 Bibcode: 1993ASPC...42..383B