Photoelectric measurement of lunar occultations. VI. Further observational results. Dunham, D. W. ; Evans, D. S. ; McGraw, J. T. ; Sandmann, W. H. ; Wells, D. C. Abstract Publication: The Astronomical Journal Pub Date: August 1973 DOI: 10.1086/111446 Bibcode: 1973AJ.....78..482D