Muhleman, D. O.; Ekers, R. D.; Fomalont, E. B. (15 June 1970). "Radio Interferometric Test of the General Relativistic Light Bending Near the Sun". Physical Review Letters. 24 (24): 1377–1380. Bibcode:1970PhRvL..24.1377M. doi:10.1103/PhysRevLett.24.1377.
Muhleman, D. O.; Ekers, R. D.; Fomalont, E. B. (15 June 1970). "Radio Interferometric Test of the General Relativistic Light Bending Near the Sun". Physical Review Letters. 24 (24): 1377–1380. Bibcode:1970PhRvL..24.1377M. doi:10.1103/PhysRevLett.24.1377.