Erratum: Experimental search for anisotropy in the speed of light Trimmer, William S. ; Baierlein, Ralph F. ; Faller, James E. ; Hill, Henry A. Abstract Publication: Physical Review D Pub Date: April 1974 DOI: 10.1103/PhysRevD.9.2489.2 Bibcode: 1974PhRvD...9R2489T