Undergraduate Experiment With the Michelson Interferometer M. S.Belsley, M.J.M. Gomes, E. M. Gomes, A. da Costa, R. M. Ribeiro, J. C. V. Gomes, C. M. C. Silva, F. G. Peixoto International Conference on Physics Education, "Light and Information", Braga, Portugal, 19-24 Julho 1993