1. A simple calibrator for the Mekometer;Bradsell;Surv. Rev.,1977
2. Mekometer III: E.D.M. with sub-millimetre resolution;Froome;Surv. Rev.,1971
3. Tectonic implications of the Brawley earthquake swarm, Imperial Valley, California, January 1975;Johnson;Bull. Seismol. Soc. Am.,1976
4. Mason, R.G. 1976. Mekometer measurements in the Imperial Valley, California. U.S.G.S. Contract 14-08-0001-14800, Final Rep.
5. Miller, R.W. Pope, A.J. Stettner, H.S. and David, J.L. 1970. Crustal movement investigations—triangulation: Imperial Valley. Oper. Data Rep. C. & G.S. Dr-10, Coast Geod. Surv. U.S. Dept. of Commerce, Rockville, Md.