Dwarf K and M stars in the southern hemisphere. Upgren, A. R. ; Grossenbacher, R. ; Penhallow, W. S. ; MacConnell, D. J. ; Frye, R. L. Abstract Publication: The Astronomical Journal Pub Date: August 1972 DOI: 10.1086/111308 Bibcode: 1972AJ.....77..486U